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U.S. Securities and Exchange Commission's Electronic Data Gathering, Analysis, and Retrieval system Sec12 Mar 2013 U.S. Securities and Exchange Commission's Electronic Data Gathering, Analysis, and Retrieval system, United States

Text

Entity

entityName BGC Group, Inc.
Cik 1094831
Form 10-K
Filed 2013-03-12
Fp FY
Fy 2012
Accn 0001193125-13-101758

Facts up to 2012-12-31

  1. Description Revenues from operations, excluding interest and dividend income. Includes revenues from the following sources: investment banking (underwriting and financial advisory), principal transactions (sales and trading, and investment gains and losses), commissions, asset management, and investment advisory and other services.
    Fact RevenuesExcludingInterestAndDividends
    Label Revenues, Excluding Interest and Dividends
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,760,487,000
  2. Description The cash inflow from the additional capital contribution to the entity.
    Fact ProceedsFromIssuanceOfCommonStock
    Label Proceeds from Issuance of Common Stock
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 12,667,000
  3. Description The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.
    Fact EarningsPerShareDiluted
    Label Earnings Per Share, Diluted
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.16
  4. Description Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.
    Fact IncomeTaxExpenseBenefit
    Label Income Tax Expense (Benefit)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 20,224,000
  5. Description Amount of realized and unrealized gain (loss) resulting from the difference between acquisition price and selling price or fair value of trading assets and trading liabilities, and from the firm's direct investment activity, conducted separately from customer trading activities, including, but not limited to, investments in private equity, alternative investment products, real estate, and exchanges and memberships.
    Fact PrincipalTransactionsRevenue
    Label Principal Transactions Revenue, Net
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 336,160,000
  6. Description Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.
    Fact AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
    Label Accounts Payable and Accrued Liabilities
    Taxonomy us-gaap
    Unit USD
    Val 260,462,000
  7. Description Impairment recognized during the period and allocated to the reportable segment that results from the write-down of indefinite-lived intangible assets after comparing the implied fair value of reporting unit indefinite-lived intangible assets with the carrying amount of that indefinite-lived intangible assets, which are assessed at least annually for impairment.
    Fact IndefiniteLivedIntangibleAssetsImpairmentLosses
    Frame CY2012
    Label Indefinite-lived Intangible Assets, Impairment Losses (Deprecated 2013-01-31)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 0
  8. Description Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
    Fact TaxesPayableCurrent
    Label Taxes Payable, Current
    Taxonomy us-gaap
    Unit USD
    Val 82,501,000
  9. Description The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.
    Fact Depreciation
    Label Depreciation
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 36,000,000
  10. Description Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
    Fact FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
    Frame CY2012Q4I
    Label Finite-Lived Intangible Asset, Expected Amortization, Year Three
    Taxonomy us-gaap
    Unit USD
    Val 1,300,000
  11. Description Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
    Fact Goodwill
    Label Goodwill
    Taxonomy us-gaap
    Unit USD
    Val 164,874,000
  12. Description The amount of expense during the period for floor brokerage fees paid to other broker-dealers to execute trades on their behalf, stock exchange fees, order flow fees, and clearance fees.
    Fact FloorBrokerageExchangeAndClearanceFees
    Label Floor Brokerage, Exchange and Clearance Fees
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 22,733,000
  13. Description Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.
    Fact ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
    Frame CY2012
    Label Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 13.92
  14. Description The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale.
    Fact GainOnSaleOfInvestments
    Label Gain on Sale of Investments
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 52,471,000
  15. Description Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer.
    Fact DueToRelatedPartiesNoncurrent
    Label Due to Related Parties, Noncurrent
    Taxonomy us-gaap
    Unit USD
    Val 150,000,000
  16. Description Amount after tax and reclassification adjustments of other comprehensive income (loss).
    Fact OtherComprehensiveIncomeLossNetOfTax
    Label Other Comprehensive Income (Loss), Net of Tax
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -533,000
  17. Description Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.
    Fact MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
    Label Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 89,963,000
  18. Description Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.
    Fact AdditionalPaidInCapitalCommonStock
    Label Additional Paid in Capital, Common Stock
    Taxonomy us-gaap
    Unit USD
    Val 575,381,000
  19. Description The cash outflow to acquire an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among myriad other features and characteristics.
    Fact PaymentsToAcquireNotesReceivable
    Label Payments to Acquire Notes Receivable
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 22,000,000
  20. Description The amount of expense incurred in the period for communication, which is the exchange of information by several methods.
    Fact Communication
    Label Communication
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 90,807,000
  21. Description Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.
    Fact AmortizationOfFinancingCostsAndDiscounts
    Label Amortization of Debt Issuance Costs and Discounts
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 4,378,000
  22. Description Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.
    Fact OperatingLeasesFutureMinimumPaymentsDueInRollingAfterYearFive
    Frame CY2012Q4I
    Label Operating Leases, Future Minimum Payments, Due in Rolling after Year Five
    Taxonomy us-gaap
    Unit USD
    Val 72,256,000
  23. Description Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.
    Fact NetCashProvidedByUsedInFinancingActivities
    Label Net Cash Provided by (Used in) Financing Activities
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -85,008,000
  24. Description Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
    Fact FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
    Frame CY2012Q4I
    Label Finite-Lived Intangible Asset, Expected Amortization, Year Four
    Taxonomy us-gaap
    Unit USD
    Val 700,000
  25. Description Amount of Net Income (Loss) attributable to noncontrolling interest.
    Fact NetIncomeLossAttributableToNoncontrollingInterest
    Label Net Income (Loss) Attributable to Noncontrolling Interest
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 11,649,000
  26. Description Represents the aggregate of total long-term debt, including current maturities and short-term debt.
    Fact DebtLongtermAndShorttermCombinedAmount
    Label Debt, Long-term and Short-term, Combined Amount
    Taxonomy us-gaap
    Unit USD
    Val 451,444,000
  27. Description The cash inflow associated with the sale of equity securities classified as available-for-sale securities.
    Fact ProceedsFromSaleOfAvailableForSaleSecuritiesEquity
    Label Proceeds from Sale of Available-for-sale Securities, Equity
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 906,000
  28. Description Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredIncomeTaxExpenseBenefit
    Label Deferred Income Tax Expense (Benefit)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -11,550,000
  29. Description Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.
    Fact ForeignCurrencyTransactionGainLossRealized
    Label Foreign Currency Transaction Gain (Loss), Realized
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 47,000
  30. Description Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors.
    Fact StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount
    Frame CY2012
    Label Stock Repurchase Program, Remaining Authorized Repurchase Amount (Deprecated 2014-01-31)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 68,998,249
  31. Description Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
    Fact FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
    Frame CY2012Q4I
    Label Finite-Lived Intangible Asset, Expected Amortization, Year One
    Taxonomy us-gaap
    Unit USD
    Val 2,900,000
  32. Description Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.
    Fact TreasuryStockShares
    Label Treasury Stock, Shares
    Taxonomy us-gaap
    Unit shares
    Val 18,041,000
  33. Description Aggregate cash proceeds received from a combination of transactions that are classified as investing activities in which assets, which may include one or more investments, are sold to third-party buyers. This element can be used by entities to aggregate proceeds from all asset sales that are classified as investing activities.
    Fact ProceedsFromSalesOfAssetsInvestingActivities
    Label Proceeds from Sales of Assets, Investing Activities
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 52,471,000
  34. Description The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.
    Fact IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
    Label Income (Loss) from Continuing Operations before Income Taxes, Domestic
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 6,900,000
  35. Description Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.
    Fact UndistributedEarningsOfForeignSubsidiaries
    Frame CY2012Q4I
    Label Undistributed Earnings of Foreign Subsidiaries
    Taxonomy us-gaap
    Unit USD
    Val 82,000,000
  36. Description Other cash or noncash adjustments to reconcile net income to cash provided by (used in) operating activities that are not separately disclosed in the statement of cash flows (for example, cash received or cash paid during the current period for miscellaneous operating activities, net change during the reporting period in other assets or other liabilities).
    Fact OtherOperatingActivitiesCashFlowStatement
    Label Other Operating Activities, Cash Flow Statement
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -65,000
  37. Description The cash outflow associated with the development, modification or acquisition of software programs or applications for internal use (that is, not to be sold, leased or otherwise marketed to others) that qualify for capitalization.
    Fact PaymentsForSoftware
    Label Payments for Software
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -14,032,000
  38. Description Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.
    Fact NetIncomeLossAvailableToCommonStockholdersBasic
    Label Net Income (Loss) Available to Common Stockholders, Basic
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 23,864,000
  39. Description Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.
    Fact UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
    Label Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 500,000
  40. Description The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.
    Fact ProceedsFromIssuanceOfSecuredDebt
    Label Proceeds from Issuance of Secured Debt
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 30,983,000
  41. Description The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.
    Fact PaymentsToAcquirePropertyPlantAndEquipment
    Label Payments to Acquire Property, Plant, and Equipment
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 36,759,000
  42. Description The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.
    Fact ProfitLoss
    Label Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 35,513,000
  43. Description Fair value of financial and nonfinancial obligations.
    Fact LiabilitiesFairValueDisclosure
    Label Financial and Nonfinancial Liabilities, Fair Value Disclosure
    Taxonomy us-gaap
    Unit USD
    Val 338,000
  44. Description The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.
    Fact AmortizationOfIntangibleAssets
    Label Amortization of Intangible Assets
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 3,600,000
  45. Description The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings.
    Fact FinancialInstrumentsOwnedAtFairValue
    Label Financial Instruments, Owned, at Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 32,003,000
  46. Description Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.
    Fact ComprehensiveIncomeNetOfTax
    Label Comprehensive Income (Loss), Net of Tax, Attributable to Parent
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 23,434,000
  47. Description The net amount of all regulatory assets less all regulatory liabilities as of the end of the period.
    Fact NetRegulatoryAssets
    Frame CY2012Q4I
    Label Net Regulatory Assets
    Taxonomy us-gaap
    Unit USD
    Val 324,200,000
  48. Description Contractually required future rental payments receivable on noncancelable subleasing arrangements.
    Fact OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals
    Label Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals
    Taxonomy us-gaap
    Unit USD
    Val 3,100,000
  49. Description Maximum number of shares issuable under the contingent consideration arrangement in a business combination.
    Fact BusinessAcquisitionContingentConsiderationSharesIssuable
    Frame CY2012
    Label Business Acquisition, Contingent Consideration, Shares Issuable (Deprecated 2013-01-31)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit shares
    Val 1,800,000
  50. Description Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.
    Fact FiniteLivedIntangibleAssetsNet
    Label Finite-Lived Intangible Assets, Net
    Taxonomy us-gaap
    Unit USD
    Val 8,135,000
  51. Description Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.
    Fact DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
    Label Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 782,000
  52. Description Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.
    Fact StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
    Label Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
    Taxonomy us-gaap
    Unit USD
    Val 427,412,000
  53. Description Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.
    Fact PropertyPlantAndEquipmentNet
    Label Property, Plant and Equipment, Net
    Taxonomy us-gaap
    Unit USD
    Val 141,109,000
  54. Description Amount of increase in noncontrolling interest from a business combination.
    Fact NoncontrollingInterestIncreaseFromBusinessCombination
    Label Noncontrolling Interest, Increase from Business Combination
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -7,243,000
  55. Description Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies.
    Fact EffectOfExchangeRateOnCashAndCashEquivalents
    Label Effect of Exchange Rate on Cash and Cash Equivalents
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 487,000
  56. Description Aggregate dividends declared during the period for each share of common stock outstanding.
    Fact CommonStockDividendsPerShareDeclared
    Label Common Stock, Dividends, Per Share, Declared
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.63
  57. Description This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy.
    Fact StockholdersEquityOther
    Label Stockholders' Equity, Other
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 43,000
  58. Description Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.
    Fact PaymentsRelatedToTaxWithholdingForShareBasedCompensation
    Label Payment, Tax Withholding, Share-based Payment Arrangement
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 2,280,000
  59. Description Amount of unrecognized tax benefits.
    Fact UnrecognizedTaxBenefits
    Label Unrecognized Tax Benefits
    Taxonomy us-gaap
    Unit USD
    Val 3,250,000
  60. Description Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.
    Fact OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
    Label Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -533,000
  61. Description The increase (decrease) during the reporting period in other obligations or expenses incurred but not yet paid.
    Fact IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities
    Label Increase (Decrease) in Other Accounts Payable and Accrued Liabilities
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 23,371,000
  62. Description Amount of assets classified as other.
    Fact OtherAssets
    Label Other Assets
    Taxonomy us-gaap
    Unit USD
    Val 101,536,000
  63. Description The increase (decrease) during the reporting period in the total amount due to the entity related to activities and operations with other broker dealers, and clearing organizations, including deposits.
    Fact IncreaseDecreaseInBrokerageReceivables
    Label Increase (Decrease) in Receivables from Brokers-Dealers and Clearing Organizations
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -37,751,000
  64. Description Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.
    Fact OperatingLeasesFutureMinimumPaymentsDue
    Frame CY2012Q4I
    Label Operating Leases, Future Minimum Payments Due
    Taxonomy us-gaap
    Unit USD
    Val 234,339,000
  65. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to noncontrolling interest income (loss) exempt from income taxes.
    Fact IncomeTaxReconciliationMinorityInterestIncomeExpense
    Label Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -2,258,000
  66. Description Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
    Fact FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
    Frame CY2012Q4I
    Label Finite-Lived Intangible Asset, Expected Amortization, Year Two
    Taxonomy us-gaap
    Unit USD
    Val 2,200,000
  67. Description Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.
    Fact DeferredTaxLiabilities
    Label Deferred Tax Liabilities, Net
    Taxonomy us-gaap
    Unit USD
    Val 5,738,000
  68. Description The increase (decrease) during the reporting period in receivables to be collected from an entity that is controlling, under the control of, or within the same control group as the reporting entity by means of direct or indirect ownership.
    Fact IncreaseDecreaseDueFromAffiliates
    Label Increase (Decrease) Due from Affiliates
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 14,726,000
  69. Description Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredFederalIncomeTaxExpenseBenefit
    Label Deferred Federal Income Tax Expense (Benefit)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -6,741,000
  70. Description Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.
    Fact AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
    Label Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
    Start 2012-01-01
    Taxonomy us-gaap
    Unit shares
    Val 49,000,000
  71. Description Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.
    Fact AssetImpairmentCharges
    Label Asset Impairment Charges
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,255,000
  72. Description Amount of other payables due to broker-dealers or clearing organizations.
    Fact OtherPayablesToBrokerDealersAndClearingOrganizations
    Label Other Payables to Broker-Dealers and Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 23,282,000
  73. Description Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.
    Fact IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
    Label Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 55,737,000
  74. Description The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as operating activities. This may include cash restricted for regulatory purposes.
    Fact IncreaseDecreaseInRestrictedCashForOperatingActivities
    Label Increase (Decrease) in Restricted Cash for Operating Activities
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 424,000
  75. Description Amount of commission revenue from buying and selling securities on behalf of customers.
    Fact BrokerageCommissionsRevenue
    Label Brokerage Commissions Revenue
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,176,009,000
  76. Description Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.
    Fact InterestPaid
    Label Interest Paid, Including Capitalized Interest, Operating and Investing Activities
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 27,187,000
  77. Description Carrying amount as of the balance sheet date of obligations due all related parties.
    Fact DueToRelatedPartiesCurrentAndNoncurrent
    Label Due to Related Parties
    Taxonomy us-gaap
    Unit USD
    Val 40,700,000
  78. Description A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.
    Fact ProfessionalFees
    Label Professional Fees
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 72,777,000
  79. Description Aggregate dividends paid during the period for each share of common stock outstanding.
    Fact CommonStockDividendsPerShareCashPaid
    Label Common Stock, Dividends, Per Share, Cash Paid
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.63
  80. Description The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.
    Fact IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
    Label Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 19,508,000
  81. Description Amount of increase (decrease) in temporary equity from changes classified as other.
    Fact TemporaryEquityOtherChanges
    Label Temporary Equity, Other Changes
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 21,000
  82. Description The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.
    Fact RepaymentsOfShortTermDebt
    Label Repayments of Short-term Debt
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 103,600,000
  83. Description Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.
    Fact AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
    Label Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
    Taxonomy us-gaap
    Unit USD
    Val 293,987,000
  84. Description The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.
    Fact PaymentsToAcquireBusinessesNetOfCashAcquired
    Label Payments to Acquire Businesses, Net of Cash Acquired
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 31,413,000
  85. Description Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.
    Fact CurrentIncomeTaxExpenseBenefit
    Label Current Income Tax Expense (Benefit)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 31,774,000
  86. Description The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
    Frame CY2012Q4I
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
    Taxonomy us-gaap
    Unit shares
    Val 6,450,931
  87. Description Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).
    Fact DividendsCommonStock
    Label Dividends, Common Stock
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 90,590,000
  88. Description Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.
    Fact AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
    Label APIC, Share-based Payment Arrangement, Increase for Cost Recognition
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 5,406,000
  89. Description Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.
    Fact LiabilitiesAndStockholdersEquity
    Label Liabilities and Equity
    Taxonomy us-gaap
    Unit USD
    Val 1,638,939,000
  90. Description Revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations.
    Fact ManagementFeesRevenue
    Label Management Fees Revenue (Deprecated 2018-01-31)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 122,704,000
  91. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).
    Fact IncomeTaxReconciliationStateAndLocalIncomeTaxes
    Label Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 684,000
  92. Description Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
    Taxonomy us-gaap
    Unit USD/shares
    Val 14.11
  93. Description The cumulative amount of the reporting entity's undistributed earnings or deficit.
    Fact RetainedEarningsAccumulatedDeficit
    Label Retained Earnings (Accumulated Deficit)
    Taxonomy us-gaap
    Unit USD
    Val -147,452,000
  94. Description The increase (decrease) during the period in accrued salaries.
    Fact IncreaseDecreaseInAccruedSalaries
    Label Increase (Decrease) in Accrued Salaries
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -37,137,000
  95. Description Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.
    Fact OperatingLeasesFutureMinimumPaymentsDueInRollingYearThree
    Frame CY2012Q4I
    Label Operating Leases, Future Minimum Payments, Due in Rolling Year Three
    Taxonomy us-gaap
    Unit USD
    Val 32,381,000
  96. Description Amount of revenue and income classified as other.
    Fact OtherIncome
    Label Other Income
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 56,966,000
  97. Description Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice
    Frame CY2012Q4I
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price
    Taxonomy us-gaap
    Unit USD/shares
    Val 14.11
  98. Description Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.
    Fact NoncurrentAssets
    Label Long-Lived Assets
    Taxonomy us-gaap
    Unit USD
    Val 559,368,000
  99. Description This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.
    Fact EquityMethodInvestments
    Label Equity Method Investments
    Taxonomy us-gaap
    Unit USD
    Val 25,556,000
  100. Description Amount of contractual obligation to be paid in fourth and fifth fiscal years following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
    Fact ContractualObligationDueInFourthAndFifthYear
    Frame CY2012Q4I
    Label Contractual Obligation, to be Paid, Year Four and Five
    Taxonomy us-gaap
    Unit USD
    Val 230,571,000
  101. Description Payroll costs incurred (including equity-based compensation) that are directly related to services rendered by an entity during the reporting period.
    Fact CostOfServicesDirectLabor
    Label Cost of Services, Direct Labor (Deprecated 2018-01-31)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,159,664,000
  102. Description Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.
    Fact DeferredTaxAssetsValuationAllowance
    Label Deferred Tax Assets, Valuation Allowance
    Taxonomy us-gaap
    Unit USD
    Val 24,288,000
  103. Description Amount of other miscellaneous assets.
    Fact OtherAssetsMiscellaneous
    Label Other Assets, Miscellaneous
    Taxonomy us-gaap
    Unit USD
    Val 19,597,000
  104. Description Amount of contractual obligation to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
    Fact ContractualObligationDueAfterFifthYear
    Frame CY2012Q4I
    Label Contractual Obligation, to be Paid, after Year Five
    Taxonomy us-gaap
    Unit USD
    Val 408,295,000
  105. Description Percentage of domestic federal statutory tax rate applicable to pretax income (loss).
    Fact EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
    Frame CY2012
    Label Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
    Start 2012-01-01
    Taxonomy us-gaap
    Unit pure
    Val 0.35
  106. Description Amount of contractual obligation to be paid in second and third fiscal years following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
    Fact ContractualObligationDueInSecondAndThirdYear
    Frame CY2012Q4I
    Label Contractual Obligation, to be Paid, Year Two and Three
    Taxonomy us-gaap
    Unit USD
    Val 295,433,000
  107. Description The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue.
    Fact OperatingLeasesIncomeStatementLeaseRevenue
    Frame CY2012
    Label Operating Leases, Income Statement, Lease Revenue
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 0
  108. Description Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.
    Fact ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
    Label Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 34,980,000
  109. Description Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.
    Fact DeferredTaxAssetsNet
    Label Deferred Tax Assets, Net of Valuation Allowance
    Taxonomy us-gaap
    Unit USD
    Val 30,201,000
  110. Description Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.
    Fact PaymentsOfDividendsCommonStock
    Label Payments of Ordinary Dividends, Common Stock
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 90,590,000
  111. Description The increase (decrease) during the reporting period in the obligations due for goods and services provided by the following types of related parties: a parent company and its subsidiaries, subsidiaries of a common parent, an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entities' management, an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence.
    Fact IncreaseDecreaseInAccountsPayableRelatedParties
    Label Increase (Decrease) in Accounts Payable, Related Parties
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 21,000,000
  112. Description The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.
    Fact IncomeTaxesPaid
    Label Income Taxes Paid
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 20,292,000
  113. Description Number of shares authorized for issuance under share-based payment arrangement.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
    Frame CY2012Q4I
    Label Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
    Taxonomy us-gaap
    Unit shares
    Val 150,000,000
  114. Description Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.
    Fact DebtInstrumentInterestRateEffectivePercentage
    Frame CY2012Q4I
    Label Debt Instrument, Interest Rate, Effective Percentage
    Taxonomy us-gaap
    Unit pure
    Val 0.06
  115. Description Carrying amount as of the balance sheet date of expenditures made in advance of when the economic benefit of the cost will be realized, and which will be expensed in future periods with the passage of time or when a triggering event occurs.
    Fact PrepaidExpenseCurrentAndNoncurrent
    Label Prepaid Expense
    Taxonomy us-gaap
    Unit USD
    Val 26,296,000
  116. Description Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.
    Fact DebtInstrumentFairValue
    Frame CY2012Q4I
    Label Debt Instrument, Fair Value Disclosure
    Taxonomy us-gaap
    Unit USD
    Val 32,003,000
  117. Description Value of shares of stock issued during the period as part of a transaction to acquire assets that do not qualify as a business combination.
    Fact StockIssuedDuringPeriodValuePurchaseOfAssets
    Label Stock Issued During Period, Value, Purchase of Assets
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 3,055,000
  118. Description The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.
    Fact IncomeTaxExaminationPenaltiesAndInterestExpense
    Frame CY2012
    Label Income Tax Examination, Penalties and Interest Expense
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 66,000
  119. Description Fair value as of the balance sheet date of all foreign currency derivative liabilities not designated as hedging instruments.
    Fact ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
    Label Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 338,000
  120. Description Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact CurrentFederalTaxExpenseBenefit
    Label Current Federal Tax Expense (Benefit)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 11,316,000
  121. Description The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.
    Fact LongTermDebtFairValue
    Label Long-term Debt, Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 419,873,000
  122. Description Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.
    Fact NetCashProvidedByUsedInInvestingActivities
    Label Net Cash Provided by (Used in) Investing Activities
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -67,983,000
  123. Description Amount of contractual obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
    Fact ContractualObligationDueInNextTwelveMonths
    Frame CY2012Q4I
    Label Contractual Obligation, to be Paid, Year One
    Taxonomy us-gaap
    Unit USD
    Val 99,557,000
  124. Description Aggregate notional amount of all foreign currency derivatives not designated as hedging instruments. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.
    Fact NotionalAmountOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments
    Label Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments (Deprecated 2013-01-31)
    Taxonomy us-gaap
    Unit USD
    Val 233,500,000
  125. Description Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.
    Fact CashAndCashEquivalentsPeriodIncreaseDecrease
    Label Cash and Cash Equivalents, Period Increase (Decrease)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 18,696,000
  126. Description For an unclassified balance sheet, amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership.
    Fact DueFromAffiliates
    Label Due from Affiliates
    Taxonomy us-gaap
    Unit USD
    Val 21,655,000
  127. Description Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as a liability.
    Fact DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
    Label Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 338,000
  128. Description Amount of the cost of borrowed funds accounted for as interest expense.
    Fact InterestExpense
    Label Interest Expense
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 34,885,000
  129. Description Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.
    Fact LeaseAndRentalExpense
    Label Operating Leases, Rent Expense
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 50,800,000
  130. Description Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.
    Fact CashAndCashEquivalentsAtCarryingValue
    Label Cash and Cash Equivalents, at Carrying Value
    Taxonomy us-gaap
    Unit USD
    Val 388,409,000
  131. Description Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.
    Fact DeferredTaxAssetsLiabilitiesNet
    Label Deferred Tax Assets, Net
    Taxonomy us-gaap
    Unit USD
    Val 30,201,000
  132. Description Amount of right to receive cash and securities on deposit with clearing organizations. Clearing organizations perform post trade processing and trade comparisons among numerous broker-dealers and act as settlement agents between buying and selling broker-dealers.
    Fact ReceivablesFromClearingOrganizations
    Label Receivables from Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 45,563,000
  133. Description Amount of noncash expense for share-based payment arrangement.
    Fact ShareBasedCompensation
    Frame CY2012
    Label Share-based Payment Arrangement, Noncash Expense
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 131,483,000
  134. Description Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.
    Fact DeferredTaxAssetsOperatingLossCarryforwards
    Label Deferred Tax Assets, Operating Loss Carryforwards
    Taxonomy us-gaap
    Unit USD
    Val 29,058,000
  135. Description Amount receivable as the result of a fail-to-deliver. A fail-to-deliver is a securities sale to another broker-dealer that has not been delivered to buying broker-dealer by the close of business on the settlement date.
    Fact SecuritiesFailedToDeliver
    Label Securities Failed-to-Deliver
    Taxonomy us-gaap
    Unit USD
    Val 238,790,000
  136. Description Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.
    Fact OperatingLeasesFutureMinimumPaymentsDueInRollingYearFive
    Frame CY2012Q4I
    Label Operating Leases, Future Minimum Payments, Due in Rolling Year Five
    Taxonomy us-gaap
    Unit USD
    Val 20,458,000
  137. Description Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests.
    Fact OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
    Label Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 11,546,000
  138. Description Aggregate notional amount of all interest rate derivatives not designated as hedging instruments. Notional amount refers to the monetary amount specified in the interest rate derivative contract.
    Fact NotionalAmountOfInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments
    Label Notional Amount of Interest Rate Derivative Instruments Not Designated as Hedging Instruments (Deprecated 2013-01-31)
    Taxonomy us-gaap
    Unit USD
    Val 361,800,000
  139. Description Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.
    Fact DeferredTaxAssetsGross
    Label Deferred Tax Assets, Gross
    Taxonomy us-gaap
    Unit USD
    Val 60,227,000
  140. Description Number of shares that have been repurchased during the period and are being held in treasury.
    Fact TreasuryStockSharesAcquired
    Frame CY2012
    Label Treasury Stock, Shares, Acquired
    Start 2012-01-01
    Taxonomy us-gaap
    Unit shares
    Val 44,013
  141. Description Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).
    Fact MinorityInterest
    Label Stockholders' Equity Attributable to Noncontrolling Interest
    Taxonomy us-gaap
    Unit USD
    Val 93,120,000
  142. Description The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.
    Fact RepaymentsOfSecuredDebt
    Label Repayments of Secured Debt
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 24,778,000
  143. Description Change in the number of units for each class of partners' capital accounts during the year due to acquisitions. Partners include general, limited and preferred partners.
    Fact PartnersCapitalAccountUnitsAcquisitions
    Label Partners' Capital Account, Units, Acquisitions
    Start 2012-01-01
    Taxonomy us-gaap
    Unit shares
    Val 1,900,000
  144. Description Total change in each class of partners' capital accounts during the year due to redemptions and adjustments to redemption value. All partners include general, limited and preferred partners.
    Fact PartnersCapitalAccountRedemptions
    Label Partners' Capital Account, Redemptions
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -13,491,000
  145. Description Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.
    Fact DeferredTaxLiabilitiesPropertyPlantAndEquipment
    Label Deferred Tax Liabilities, Property, Plant and Equipment
    Taxonomy us-gaap
    Unit USD
    Val 572,000
  146. Description Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.
    Fact BusinessAcquisitionContingentConsiderationAtFairValue
    Frame CY2012Q4I
    Label Business Acquisition, Contingent Consideration, at Fair Value (Deprecated 2013-01-31)
    Taxonomy us-gaap
    Unit USD
    Val 5,100,000
  147. Description Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.
    Fact TreasuryStockValueAcquiredCostMethod
    Label Treasury Stock, Value, Acquired, Cost Method
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 337,000
  148. Description Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact CurrentForeignTaxExpenseBenefit
    Label Current Foreign Tax Expense (Benefit)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 17,849,000
  149. Description Amount of distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities.
    Fact ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital
    Label Proceeds from Equity Method Investment, Distribution, Return of Capital
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 928,000
  150. Description Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.
    Fact IndefiniteLivedIntangibleAssetsExcludingGoodwill
    Label Indefinite-lived Intangible Assets (Excluding Goodwill)
    Taxonomy us-gaap
    Unit USD
    Val 12,185,000
  151. Description Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.
    Fact WeightedAverageNumberOfSharesOutstandingBasic
    Label Weighted Average Number of Shares Outstanding, Basic
    Start 2012-01-01
    Taxonomy us-gaap
    Unit shares
    Val 144,886,000
  152. Description Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.
    Fact OperatingExpenses
    Label Operating Expenses
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,711,256,000
  153. Description The aggregate amount to be paid by the entity upon redemption of the security that is classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.
    Fact TemporaryEquityRedemptionValue
    Label Temporary Equity, Redemption Value (Deprecated 2014-01-31)
    Taxonomy us-gaap
    Unit USD
    Val 78,839,000
  154. Description Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.
    Fact AssetsFairValueDisclosure
    Label Assets, Fair Value Disclosure
    Taxonomy us-gaap
    Unit USD
    Val 32,785,000
  155. Description Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.
    Fact NetIncomeLossAvailableToCommonStockholdersDiluted
    Label Net Income (Loss) Available to Common Stockholders, Diluted
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 46,242,000
  156. Description Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other.
    Fact DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther
    Label Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other
    Taxonomy us-gaap
    Unit USD
    Val 2,884,000
  157. Description Amount receivable from broker-dealers and clearing organizations, including, but not limited to, securities failed-to-deliver, certain deposits for securities borrowed, open transactions, good faith and margin deposits, commissions and floor brokerage receivables.
    Fact ReceivablesFromBrokersDealersAndClearingOrganizations
    Label Receivables from Brokers-Dealers and Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 297,688,000
  158. Description Amount of total risk-based capital exceeding minimum required for capital adequacy as defined by regulatory framework.
    Fact ExcessCapital
    Frame CY2012Q4I
    Label Banking Regulation, Total Risk-Based Capital, Excess, Actual
    Taxonomy us-gaap
    Unit USD
    Val 157,900,000
  159. Description The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
    Frame CY2012Q4I
    Label Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
    Taxonomy us-gaap
    Unit shares
    Val 77,200,000
  160. Description Amount due from customers for fees and charges arising from transactions related to the entity's brokerage activities and operations.
    Fact ReceivablesFromCustomers
    Label Receivables from Customers
    Taxonomy us-gaap
    Unit USD
    Val 222,299,000
  161. Description Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.
    Fact Liabilities
    Label Liabilities
    Taxonomy us-gaap
    Unit USD
    Val 1,132,688,000
  162. Description Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.
    Fact PropertyPlantAndEquipmentGross
    Label Property, Plant and Equipment, Gross
    Taxonomy us-gaap
    Unit USD
    Val 435,096,000
  163. Description Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.
    Fact OperatingLeasesFutureMinimumPaymentsNextRollingTwelveMonths
    Frame CY2012Q4I
    Label Operating Leases, Future Minimum Payments, Next Rolling Twelve Months
    Taxonomy us-gaap
    Unit USD
    Val 45,260,000
  164. Description Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.
    Fact Assets
    Label Assets
    Taxonomy us-gaap
    Unit USD
    Val 1,638,939,000
  165. Description Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
    Fact FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
    Frame CY2012Q4I
    Label Finite-Lived Intangible Asset, Expected Amortization, after Year Five
    Taxonomy us-gaap
    Unit USD
    Val 300,000
  166. Description Amount of cash subject to withdrawal restrictions, restricted deposits held as compensating balances, and cash and securities segregated in compliance with regulations (such as cash deposited in a special reserve account for the exclusive benefit of customers).
    Fact CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations
    Label Cash and Securities Segregated under Federal and Other Regulations
    Taxonomy us-gaap
    Unit USD
    Val 3,392,000
  167. Description Amount of other receivables due from broker-dealers or clearing organizations.
    Fact OtherReceivablesFromBrokerDealersAndClearingOrganizations
    Label Other Receivables from Broker-Dealers and Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 11,587,000
  168. Description The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.
    Fact EarningsPerShareBasic
    Label Earnings Per Share, Basic
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.16
  169. Description The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
    Start 2012-01-01
    Taxonomy us-gaap
    Unit shares
    Val 1,805,135
  170. Description Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
    Frame CY2012Q4I
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number
    Taxonomy us-gaap
    Unit shares
    Val 6,450,931
  171. Description The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.
    Fact NetIncomeLoss
    Label Net Income (Loss) Attributable to Parent
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 23,864,000
  172. Description Amount of expense classified as other.
    Fact OtherExpenses
    Label Other Expenses
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 64,245,000
  173. Description Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.
    Fact SecuredDebt
    Frame CY2012Q4I
    Label Secured Debt
    Taxonomy us-gaap
    Unit USD
    Val 26,400,000
  174. Description Amount of deferred tax liability attributable to taxable temporary differences from capitalized software.
    Fact DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware
    Label Deferred Tax Liabilities, Deferred Expense, Capitalized Software
    Taxonomy us-gaap
    Unit USD
    Val 4,435,000
  175. Description The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.
    Fact TreasuryStockValue
    Label Treasury Stock, Value
    Taxonomy us-gaap
    Unit USD
    Val 110,090,000
  176. Description Amount payable as the result of fail-to-receive. A fail-to-receive is a securities purchase from another broker-dealer not received from the selling broker-dealer by the close of business on the settlement date.
    Fact SecuritiesFailedToReceive
    Label Securities Failed-to-Receive
    Taxonomy us-gaap
    Unit USD
    Val 229,037,000
  177. Description The cash outflow to reacquire common stock during the period.
    Fact PaymentsForRepurchaseOfCommonStock
    Label Payments for Repurchase of Common Stock
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 337,000
  178. Description The increase (decrease) during the reporting period in the aggregate value of financial instruments used in operating activities, including trading securities, risk management instruments, and other short-term trading instruments.
    Fact IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities
    Label Increase (Decrease) in Financial Instruments Used in Operating Activities
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 16,187,000
  179. Description Net number of non-option equity instruments granted to participants.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted
    Frame CY2012
    Label Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted
    Start 2012-01-01
    Taxonomy us-gaap
    Unit shares
    Val 41,691,703
  180. Description The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.
    Fact ProceedsFromShortTermDebt
    Label Proceeds from Short-term Debt
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 90,000,000
  181. Description Amount of damages paid to the plaintiff in the legal matter.
    Fact LossContingencyDamagesPaidValue
    Label Loss Contingency, Damages Paid, Value
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 2,500,000
  182. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).
    Fact IncomeTaxReconciliationForeignIncomeTaxRateDifferential
    Label Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -7,020,000
  183. Description The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.
    Fact SecurityDeposit
    Label Security Deposit
    Taxonomy us-gaap
    Unit USD
    Val 17,766,000
  184. Description Amount payable to broker-dealers and clearing organizations, including, but not limited to, securities failed-to-receive, certain deposits received for securities loaned, open transactions, and floor-brokerage payables.
    Fact PayablesToBrokerDealersAndClearingOrganizations
    Label Payables to Broker-Dealers and Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 254,289,000
  185. Description Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.
    Fact EmployeeRelatedLiabilitiesCurrentAndNoncurrent
    Label Employee-related Liabilities
    Taxonomy us-gaap
    Unit USD
    Val 125,793,000
  186. Description The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.
    Fact WeightedAverageNumberOfDilutedSharesOutstanding
    Label Weighted Average Number of Shares Outstanding, Diluted
    Start 2012-01-01
    Taxonomy us-gaap
    Unit shares
    Val 280,809,000
  187. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.
    Fact IncomeTaxReconciliationOtherReconcilingItems
    Label Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 43,000
  188. Description Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities.
    Fact InterestIncomeOperating
    Label Interest Income, Operating
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 6,506,000
  189. Description Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.
    Fact RevenueFromRelatedParties
    Label Revenue from Related Parties
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 53,159,000
  190. Description The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.
    Fact ProceedsFromDebtNetOfIssuanceCosts
    Frame CY2012
    Label Proceeds from Debt, Net of Issuance Costs
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 108,716,000
  191. Description Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions.
    Fact SecurityOwnedAndPledgedAsCollateralFairValue
    Frame CY2012Q4I
    Label Security Owned and Pledged as Collateral, Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 0
  192. Description Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.
    Fact IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
    Label Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
    Start 2012-01-01
    Taxonomy us-gaap
    Unit shares
    Val 581,000
  193. Description Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.
    Fact LongTermDebt
    Label Long-term Debt
    Taxonomy us-gaap
    Unit USD
    Val 402,134,000
  194. Description Number of equity instruments other than options outstanding, including both vested and non-vested instruments.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
    Frame CY2012Q4I
    Label Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number
    Taxonomy us-gaap
    Unit shares
    Val 68,480,097
  195. Description Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.
    Fact StockholdersEquity
    Label Stockholders' Equity Attributable to Parent
    Taxonomy us-gaap
    Unit USD
    Val 334,292,000
  196. Description Number of options outstanding, including both vested and non-vested options.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
    Taxonomy us-gaap
    Unit shares
    Val 6,450,931
  197. Description Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.
    Fact ContractualObligation
    Frame CY2012Q4I
    Label Contractual Obligation
    Taxonomy us-gaap
    Unit USD
    Val 1,033,856,000
  198. Description Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments.
    Fact InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
    Label Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 782,000
  199. Description Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredStateAndLocalIncomeTaxExpenseBenefit
    Label Deferred State and Local Income Tax Expense (Benefit)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -1,918,000
  200. Description The cap rate on a price risk derivative such as a cap or collar. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.
    Fact DerivativeCapPrice
    Frame CY2012Q4I
    Label Derivative, Cap Price
    Taxonomy us-gaap
    Unit USD/Unit
    Val 12.46
  201. Description Amount of revenue from market data services, including, but not limited to, information about current quotes and most recent prices for a specific security.
    Fact MarketDataRevenue
    Label Market Data Revenue
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 17,302,000
  202. Description Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
    Fact GoodwillTranslationAdjustments
    Label Goodwill, Translation Adjustments (Deprecated 2016-01-31)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -901,000
  203. Description Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.
    Fact OperatingLeasesFutureMinimumPaymentsDueInRollingYearTwo
    Frame CY2012Q4I
    Label Operating Leases, Future Minimum Payments, Due in Rolling Year Two
    Taxonomy us-gaap
    Unit USD
    Val 38,108,000
  204. Description Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.
    Fact NetCashProvidedByUsedInOperatingActivities
    Label Net Cash Provided by (Used in) Operating Activities
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 171,200,000
  205. Description Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.
    Fact FiniteLivedIntangibleAssetsGross
    Label Finite-Lived Intangible Assets, Gross
    Taxonomy us-gaap
    Unit USD
    Val 64,367,000
  206. Description Amount of allowance for credit loss on accounts receivable, classified as current.
    Fact AllowanceForDoubtfulAccountsReceivableCurrent
    Label Accounts Receivable, Allowance for Credit Loss, Current
    Taxonomy us-gaap
    Unit USD
    Val 13,500,000
  207. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit.
    Fact IncomeTaxReconciliationTaxCreditsResearch
    Label Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 500,000
  208. Description Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.
    Fact StockIssuedDuringPeriodValueNewIssues
    Label Stock Issued During Period, Value, New Issues
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 26,068,000
  209. Description The portion of net income or loss attributable to temporary equity interest.
    Fact TemporaryEquityNetIncome
    Label Temporary Equity, Net Income
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 3,547,000
  210. Description Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.
    Fact AccumulatedOtherComprehensiveIncomeLossNetOfTax
    Label Accumulated Other Comprehensive Income (Loss), Net of Tax
    Taxonomy us-gaap
    Unit USD
    Val -4,182,000
  211. Description Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).
    Fact Revenues
    Label Revenues
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,766,993,000
  212. Description Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.
    Fact OperatingLeasesFutureMinimumPaymentsDueInRollingYearFour
    Frame CY2012Q4I
    Label Operating Leases, Future Minimum Payments, Due in Rolling Year Four
    Taxonomy us-gaap
    Unit USD
    Val 25,876,000
  213. Description Amount of income (loss) for proportionate share of equity method investee's income (loss).
    Fact IncomeLossFromEquityMethodInvestments
    Label Income (Loss) from Equity Method Investments
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -11,775,000
  214. Description Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.
    Fact AccruedLiabilitiesAndOtherLiabilities
    Label Accrued Liabilities and Other Liabilities
    Taxonomy us-gaap
    Unit USD
    Val 177,961,000
  215. Description Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense.
    Fact OccupancyNet
    Label Occupancy, Net
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 155,349,000
  216. Description Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.
    Fact NumberOfReportableSegments
    Frame CY2012
    Label Number of Reportable Segments
    Start 2012-01-01
    Taxonomy us-gaap
    Unit Segment
    Val 2
  217. Description Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.
    Fact NumberOfReportableSegments
    Label Number of Reportable Segments
    Start 2012-04-01
    Taxonomy us-gaap
    Unit Segment
    Val 2
  218. Description Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.
    Fact DeferredTaxAssetsPropertyPlantAndEquipment
    Label Deferred Tax Assets, Property, Plant and Equipment
    Taxonomy us-gaap
    Unit USD
    Val 6,133,000
  219. Description Contractual interest rate for funds borrowed, under the debt agreement.
    Fact DebtInstrumentInterestRateStatedPercentage
    Frame CY2012Q4I
    Label Debt Instrument, Interest Rate, Stated Percentage
    Taxonomy us-gaap
    Unit pure
    Val 0.08
  220. Description Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredForeignIncomeTaxExpenseBenefit
    Label Deferred Foreign Income Tax Expense (Benefit)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val -2,352,000
  221. Description Amount payable to broker-dealers or clearing organizations for executing or clearing trades or orders.
    Fact CommissionsPayableToBrokerDealersAndClearingOrganizations
    Label Commissions Payable to Broker-Dealers and Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 1,632,000
  222. Description Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
    Fact FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
    Frame CY2012Q4I
    Label Finite-Lived Intangible Asset, Expected Amortization, Year Five
    Taxonomy us-gaap
    Unit USD
    Val 700,000
  223. Description The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.
    Fact DepreciationDepletionAndAmortization
    Label Depreciation, Depletion and Amortization
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 50,985,000
  224. Description Amount of deferred tax liability attributable to taxable temporary differences classified as other.
    Fact DeferredTaxLiabilitiesOther
    Label Deferred Tax Liabilities, Other
    Taxonomy us-gaap
    Unit USD
    Val 731,000
  225. Description The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.
    Fact PaymentsToAcquireEquityMethodInvestments
    Label Payments to Acquire Equity Method Investments
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 17,501,000
  226. Description Amount of interest expense accrued for an underpayment of income taxes.
    Fact UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
    Frame CY2012Q4I
    Label Unrecognized Tax Benefits, Interest on Income Taxes Accrued
    Taxonomy us-gaap
    Unit USD
    Val 500,000
  227. Description Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact CurrentStateAndLocalTaxExpenseBenefit
    Label Current State and Local Tax Expense (Benefit)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 2,970,000
  228. Description The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases.
    Fact OperatingLeasesRentExpenseSubleaseRentals1
    Frame CY2012
    Label Operating Leases, Rent Expense, Sublease Rentals
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 16,200,000
  229. Description The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.
    Fact IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
    Label Income (Loss) from Continuing Operations before Income Taxes, Foreign
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 62,600,000
  230. Description Amount of increase (decrease) in operating assets classified as other.
    Fact IncreaseDecreaseInOtherOperatingAssets
    Label Increase (Decrease) in Other Operating Assets
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 2,046,000
  231. Description Revenue from providing technology services. The services may include training, installation, engineering or consulting. Consulting services often include implementation support, software design or development, or the customization or modification of the licensed software.
    Fact TechnologyServicesRevenue
    Label Technology Services Revenue (Deprecated 2018-01-31)
    Start 2012-01-01
    Taxonomy us-gaap
    Unit USD
    Val 9,962,000
  232. Description Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.
    Fact IntangibleAssetsNetExcludingGoodwill
    Label Intangible Assets, Net (Excluding Goodwill)
    Taxonomy us-gaap
    Unit USD
    Val 20,320,000
  233. Description Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.
    Fact FiniteLivedIntangibleAssetsAccumulatedAmortization
    Label Finite-Lived Intangible Assets, Accumulated Amortization
    Taxonomy us-gaap
    Unit USD
    Val 56,232,000
  234. Description Number of shares under non-option equity instrument agreements that were either cancelled or expired.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations
    Frame CY2012
    Label Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations
    Start 2012-01-01
    Taxonomy us-gaap
    Unit shares
    Val 1,547,419

Facts up to 2012-06-30

  1. Description The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.
    Fact EntityPublicFloat
    Frame CY2012Q2I
    Label Entity Public Float
    Taxonomy dei
    Unit USD
    Val 596,769,481
  2. Description Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.
    Fact NumberOfReportableSegments
    Label Number of Reportable Segments
    Start 2012-01-01
    Taxonomy us-gaap
    Unit Segment
    Val 2

Facts up to 2012-03-31

Description Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.
Fact NumberOfReportableSegments
Label Number of Reportable Segments
Start 2012-01-01
Taxonomy us-gaap
Unit Segment
Val 1

Facts up to 2011-12-31

  1. Description Revenues from operations, excluding interest and dividend income. Includes revenues from the following sources: investment banking (underwriting and financial advisory), principal transactions (sales and trading, and investment gains and losses), commissions, asset management, and investment advisory and other services.
    Fact RevenuesExcludingInterestAndDividends
    Label Revenues, Excluding Interest and Dividends
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,459,244,000
  2. Description The cash inflow from the additional capital contribution to the entity.
    Fact ProceedsFromIssuanceOfCommonStock
    Label Proceeds from Issuance of Common Stock
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 15,632,000
  3. Description The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.
    Fact EarningsPerShareDiluted
    Label Earnings Per Share, Diluted
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.17
  4. Description Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.
    Fact IncomeTaxExpenseBenefit
    Label Income Tax Expense (Benefit)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 15,999,000
  5. Description Amount of realized and unrealized gain (loss) resulting from the difference between acquisition price and selling price or fair value of trading assets and trading liabilities, and from the firm's direct investment activity, conducted separately from customer trading activities, including, but not limited to, investments in private equity, alternative investment products, real estate, and exchanges and memberships.
    Fact PrincipalTransactionsRevenue
    Label Principal Transactions Revenue, Net
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 375,001,000
  6. Description Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.
    Fact AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
    Frame CY2011Q4I
    Label Accounts Payable and Accrued Liabilities
    Taxonomy us-gaap
    Unit USD
    Val 250,552,000
  7. Description The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.
    Fact ProceedsFromConvertibleDebt
    Label Proceeds from Convertible Debt
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 155,620,000
  8. Description Impairment recognized during the period and allocated to the reportable segment that results from the write-down of indefinite-lived intangible assets after comparing the implied fair value of reporting unit indefinite-lived intangible assets with the carrying amount of that indefinite-lived intangible assets, which are assessed at least annually for impairment.
    Fact IndefiniteLivedIntangibleAssetsImpairmentLosses
    Frame CY2011
    Label Indefinite-lived Intangible Assets, Impairment Losses (Deprecated 2013-01-31)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 0
  9. Description Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
    Fact TaxesPayableCurrent
    Frame CY2011Q4I
    Label Taxes Payable, Current
    Taxonomy us-gaap
    Unit USD
    Val 94,214,000
  10. Description The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.
    Fact Depreciation
    Label Depreciation
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 34,300,000
  11. Description Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
    Fact Goodwill
    Label Goodwill
    Taxonomy us-gaap
    Unit USD
    Val 141,142,000
  12. Description The cash outflow for derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments.
    Fact PaymentsForDerivativeInstrumentFinancingActivities
    Label Payments for Derivative Instrument, Financing Activities
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 11,392,000
  13. Description The amount of expense during the period for floor brokerage fees paid to other broker-dealers to execute trades on their behalf, stock exchange fees, order flow fees, and clearance fees.
    Fact FloorBrokerageExchangeAndClearanceFees
    Label Floor Brokerage, Exchange and Clearance Fees
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 25,877,000
  14. Description Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.
    Fact ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
    Frame CY2011
    Label Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 19.5
  15. Description Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer.
    Fact DueToRelatedPartiesNoncurrent
    Frame CY2011Q4I
    Label Due to Related Parties, Noncurrent
    Taxonomy us-gaap
    Unit USD
    Val 150,000,000
  16. Description Amount after tax and reclassification adjustments of other comprehensive income (loss).
    Fact OtherComprehensiveIncomeLossNetOfTax
    Label Other Comprehensive Income (Loss), Net of Tax
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -3,308,000
  17. Description Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.
    Fact MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
    Label Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 69,816,000
  18. Description Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.
    Fact AdditionalPaidInCapitalCommonStock
    Frame CY2011Q4I
    Label Additional Paid in Capital, Common Stock
    Taxonomy us-gaap
    Unit USD
    Val 489,369,000
  19. Description The amount of expense incurred in the period for communication, which is the exchange of information by several methods.
    Fact Communication
    Label Communication
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 86,392,000
  20. Description The fair value as of the balance sheet date of firm holdings in corporate stocks (common and preferred), stock options, warrants and any other financial instrument which represents, or provides the ability to obtain, ownership rights in a corporation. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.
    Fact FinancialInstrumentsOwnedCorporateEquitiesAtFairValue
    Frame CY2011Q4I
    Label Financial Instruments, Owned, Corporate Equities, at Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 275,000
  21. Description Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.
    Fact AmortizationOfFinancingCostsAndDiscounts
    Label Amortization of Debt Issuance Costs and Discounts
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,808,000
  22. Description Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.
    Fact NetCashProvidedByUsedInFinancingActivities
    Label Net Cash Provided by (Used in) Financing Activities
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 8,621,000
  23. Description Amount of Net Income (Loss) attributable to noncontrolling interest.
    Fact NetIncomeLossAttributableToNoncontrollingInterest
    Label Net Income (Loss) Attributable to Noncontrolling Interest
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 18,223,000
  24. Description Represents the aggregate of total long-term debt, including current maturities and short-term debt.
    Fact DebtLongtermAndShorttermCombinedAmount
    Frame CY2011Q4I
    Label Debt, Long-term and Short-term, Combined Amount
    Taxonomy us-gaap
    Unit USD
    Val 345,516,000
  25. Description Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredIncomeTaxExpenseBenefit
    Label Deferred Income Tax Expense (Benefit)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,963,000
  26. Description Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.
    Fact TreasuryStockShares
    Frame CY2011Q4I
    Label Treasury Stock, Shares
    Taxonomy us-gaap
    Unit shares
    Val 17,997,000
  27. Description The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.
    Fact IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
    Label Income (Loss) from Continuing Operations before Income Taxes, Domestic
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 13,300,000
  28. Description Other cash or noncash adjustments to reconcile net income to cash provided by (used in) operating activities that are not separately disclosed in the statement of cash flows (for example, cash received or cash paid during the current period for miscellaneous operating activities, net change during the reporting period in other assets or other liabilities).
    Fact OtherOperatingActivitiesCashFlowStatement
    Label Other Operating Activities, Cash Flow Statement
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 96,000
  29. Description The cash outflow associated with the development, modification or acquisition of software programs or applications for internal use (that is, not to be sold, leased or otherwise marketed to others) that qualify for capitalization.
    Fact PaymentsForSoftware
    Label Payments for Software
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -15,940,000
  30. Description Weighted average price at which option holders acquired shares when converting their stock options into shares.
    Fact ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
    Label Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 5.1
  31. Description Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.
    Fact NetIncomeLossAvailableToCommonStockholdersBasic
    Label Net Income (Loss) Available to Common Stockholders, Basic
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 20,137,000
  32. Description Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.
    Fact UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
    Frame CY2011
    Label Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 400,000
  33. Description The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.
    Fact ProceedsFromIssuanceOfSecuredDebt
    Label Proceeds from Issuance of Secured Debt
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 21,425,000
  34. Description The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.
    Fact PaymentsToAcquirePropertyPlantAndEquipment
    Label Payments to Acquire Property, Plant, and Equipment
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 27,190,000
  35. Description The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.
    Fact ProfitLoss
    Label Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 38,360,000
  36. Description Fair value of financial and nonfinancial obligations.
    Fact LiabilitiesFairValueDisclosure
    Frame CY2011Q4I
    Label Financial and Nonfinancial Liabilities, Fair Value Disclosure
    Taxonomy us-gaap
    Unit USD
    Val 334,000
  37. Description The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.
    Fact AmortizationOfIntangibleAssets
    Label Amortization of Intangible Assets
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 3,500,000
  38. Description The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings.
    Fact FinancialInstrumentsOwnedAtFairValue
    Frame CY2011Q4I
    Label Financial Instruments, Owned, at Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 16,282,000
  39. Description Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.
    Fact ComprehensiveIncomeNetOfTax
    Label Comprehensive Income (Loss), Net of Tax, Attributable to Parent
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 17,362,000
  40. Description Contractually required future rental payments receivable on noncancelable subleasing arrangements.
    Fact OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals
    Frame CY2011Q4I
    Label Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals
    Taxonomy us-gaap
    Unit USD
    Val 5,000,000
  41. Description Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.
    Fact FiniteLivedIntangibleAssetsNet
    Frame CY2011Q4I
    Label Finite-Lived Intangible Assets, Net
    Taxonomy us-gaap
    Unit USD
    Val 11,146,000
  42. Description Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.
    Fact DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
    Frame CY2011Q4I
    Label Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 1,185,000
  43. Description Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.
    Fact StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
    Label Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
    Taxonomy us-gaap
    Unit USD
    Val 414,698,000
  44. Description Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.
    Fact PropertyPlantAndEquipmentNet
    Frame CY2011Q4I
    Label Property, Plant and Equipment, Net
    Taxonomy us-gaap
    Unit USD
    Val 136,068,000
  45. Description Amount of increase in noncontrolling interest from a business combination.
    Fact NoncontrollingInterestIncreaseFromBusinessCombination
    Label Noncontrolling Interest, Increase from Business Combination
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 14,384,000
  46. Description Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies.
    Fact EffectOfExchangeRateOnCashAndCashEquivalents
    Label Effect of Exchange Rate on Cash and Cash Equivalents
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 4,290,000
  47. Description Aggregate dividends declared during the period for each share of common stock outstanding.
    Fact CommonStockDividendsPerShareDeclared
    Label Common Stock, Dividends, Per Share, Declared
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.65
  48. Description This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy.
    Fact StockholdersEquityOther
    Label Stockholders' Equity, Other
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -1,436,000
  49. Description Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.
    Fact PaymentsRelatedToTaxWithholdingForShareBasedCompensation
    Label Payment, Tax Withholding, Share-based Payment Arrangement
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 3,580,000
  50. Description Amount of unrecognized tax benefits.
    Fact UnrecognizedTaxBenefits
    Label Unrecognized Tax Benefits
    Taxonomy us-gaap
    Unit USD
    Val 3,250,000
  51. Description Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.
    Fact OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
    Label Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -3,979,000
  52. Description The increase (decrease) during the reporting period in other obligations or expenses incurred but not yet paid.
    Fact IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities
    Label Increase (Decrease) in Other Accounts Payable and Accrued Liabilities
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -15,438,000
  53. Description Amount of assets classified as other.
    Fact OtherAssets
    Frame CY2011Q4I
    Label Other Assets
    Taxonomy us-gaap
    Unit USD
    Val 88,893,000
  54. Description The increase (decrease) during the reporting period in the total amount due to the entity related to activities and operations with other broker dealers, and clearing organizations, including deposits.
    Fact IncreaseDecreaseInBrokerageReceivables
    Label Increase (Decrease) in Receivables from Brokers-Dealers and Clearing Organizations
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 4,928,000
  55. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to noncontrolling interest income (loss) exempt from income taxes.
    Fact IncomeTaxReconciliationMinorityInterestIncomeExpense
    Label Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 3,488,000
  56. Description Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.
    Fact DeferredTaxLiabilities
    Frame CY2011Q4I
    Label Deferred Tax Liabilities, Net
    Taxonomy us-gaap
    Unit USD
    Val 5,567,000
  57. Description The increase (decrease) during the reporting period in receivables to be collected from an entity that is controlling, under the control of, or within the same control group as the reporting entity by means of direct or indirect ownership.
    Fact IncreaseDecreaseDueFromAffiliates
    Label Increase (Decrease) Due from Affiliates
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 2,447,000
  58. Description Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredFederalIncomeTaxExpenseBenefit
    Label Deferred Federal Income Tax Expense (Benefit)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 2,766,000
  59. Description Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.
    Fact ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
    Label Excess Tax Benefit from Share-based Compensation, Financing Activities
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 3,357,000
  60. Description Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.
    Fact UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
    Frame CY2011
    Label Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 946,000
  61. Description Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.
    Fact AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
    Label Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
    Start 2011-01-01
    Taxonomy us-gaap
    Unit shares
    Val 165,300,000
  62. Description Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.
    Fact AssetImpairmentCharges
    Label Asset Impairment Charges
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 785,000
  63. Description Amount of other payables due to broker-dealers or clearing organizations.
    Fact OtherPayablesToBrokerDealersAndClearingOrganizations
    Frame CY2011Q4I
    Label Other Payables to Broker-Dealers and Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 14,990,000
  64. Description Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.
    Fact IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
    Label Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 54,359,000
  65. Description The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as operating activities. This may include cash restricted for regulatory purposes.
    Fact IncreaseDecreaseInRestrictedCashForOperatingActivities
    Label Increase (Decrease) in Restricted Cash for Operating Activities
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 570,000
  66. Description Amount of commission revenue from buying and selling securities on behalf of customers.
    Fact BrokerageCommissionsRevenue
    Label Brokerage Commissions Revenue
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 996,263,000
  67. Description Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.
    Fact InterestPaid
    Label Interest Paid, Including Capitalized Interest, Operating and Investing Activities
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 20,520,000
  68. Description Carrying amount as of the balance sheet date of obligations due all related parties.
    Fact DueToRelatedPartiesCurrentAndNoncurrent
    Frame CY2011Q4I
    Label Due to Related Parties
    Taxonomy us-gaap
    Unit USD
    Val 19,667,000
  69. Description A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.
    Fact ProfessionalFees
    Label Professional Fees
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 67,746,000
  70. Description Aggregate dividends paid during the period for each share of common stock outstanding.
    Fact CommonStockDividendsPerShareCashPaid
    Label Common Stock, Dividends, Per Share, Cash Paid
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.65
  71. Description The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.
    Fact IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
    Label Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 19,025,000
  72. Description Amount of increase (decrease) in temporary equity from changes classified as other.
    Fact TemporaryEquityOtherChanges
    Frame CY2011
    Label Temporary Equity, Other Changes
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -847,000
  73. Description The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.
    Fact RepaymentsOfShortTermDebt
    Label Repayments of Short-term Debt
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 16,400,000
  74. Description Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.
    Fact AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
    Frame CY2011Q4I
    Label Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
    Taxonomy us-gaap
    Unit USD
    Val 312,672,000
  75. Description The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.
    Fact PaymentsToAcquireBusinessesNetOfCashAcquired
    Label Payments to Acquire Businesses, Net of Cash Acquired
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 46,703,000
  76. Description Amount of cash outflow for the payment of debt classified as other.
    Fact RepaymentsOfOtherDebt
    Label Repayments of Other Debt
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 13,835,000
  77. Description Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.
    Fact CurrentIncomeTaxExpenseBenefit
    Label Current Income Tax Expense (Benefit)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 14,036,000
  78. Description Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).
    Fact DividendsCommonStock
    Label Dividends, Common Stock
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 77,244,000
  79. Description Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.
    Fact AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
    Label APIC, Share-based Payment Arrangement, Increase for Cost Recognition
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 8,721,000
  80. Description Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.
    Fact LiabilitiesAndStockholdersEquity
    Frame CY2011Q4I
    Label Liabilities and Equity
    Taxonomy us-gaap
    Unit USD
    Val 1,405,185,000
  81. Description Revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations.
    Fact ManagementFeesRevenue
    Label Management Fees Revenue (Deprecated 2018-01-31)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,222,000
  82. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).
    Fact IncomeTaxReconciliationStateAndLocalIncomeTaxes
    Label Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 438,000
  83. Description Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
    Taxonomy us-gaap
    Unit USD/shares
    Val 14.07
  84. Description The cumulative amount of the reporting entity's undistributed earnings or deficit.
    Fact RetainedEarningsAccumulatedDeficit
    Frame CY2011Q4I
    Label Retained Earnings (Accumulated Deficit)
    Taxonomy us-gaap
    Unit USD
    Val -80,726,000
  85. Description The increase (decrease) during the period in accrued salaries.
    Fact IncreaseDecreaseInAccruedSalaries
    Label Increase (Decrease) in Accrued Salaries
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -82,972,000
  86. Description Amount of revenue and income classified as other.
    Fact OtherIncome
    Label Other Income
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 4,174,000
  87. Description Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.
    Fact NoncurrentAssets
    Frame CY2011Q4I
    Label Long-Lived Assets
    Taxonomy us-gaap
    Unit USD
    Val 520,720,000
  88. Description This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.
    Fact EquityMethodInvestments
    Frame CY2011Q4I
    Label Equity Method Investments
    Taxonomy us-gaap
    Unit USD
    Val 20,367,000
  89. Description Payroll costs incurred (including equity-based compensation) that are directly related to services rendered by an entity during the reporting period.
    Fact CostOfServicesDirectLabor
    Label Cost of Services, Direct Labor (Deprecated 2018-01-31)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 897,875,000
  90. Description Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.
    Fact BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned
    Label Business Acquisition, Equity Interest Issued or Issuable, Value Assigned
    Taxonomy us-gaap
    Unit USD
    Val -2,000,000
  91. Description Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.
    Fact DeferredTaxAssetsValuationAllowance
    Frame CY2011Q4I
    Label Deferred Tax Assets, Valuation Allowance
    Taxonomy us-gaap
    Unit USD
    Val 34,629,000
  92. Description Amount of other miscellaneous assets.
    Fact OtherAssetsMiscellaneous
    Frame CY2011Q4I
    Label Other Assets, Miscellaneous
    Taxonomy us-gaap
    Unit USD
    Val 17,815,000
  93. Description Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.
    Fact ShortTermBorrowings
    Frame CY2011Q4I
    Label Short-term Debt
    Taxonomy us-gaap
    Unit USD
    Val 13,600,000
  94. Description Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.
    Fact ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
    Label Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 35,052,000
  95. Description Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.
    Fact DeferredTaxAssetsNet
    Frame CY2011Q4I
    Label Deferred Tax Assets, Net of Valuation Allowance
    Taxonomy us-gaap
    Unit USD
    Val 24,218,000
  96. Description Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital.
    Fact AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt
    Label Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 16,053,000
  97. Description Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.
    Fact PaymentsOfDividendsCommonStock
    Label Payments of Ordinary Dividends, Common Stock
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 77,244,000
  98. Description The increase (decrease) during the reporting period in the obligations due for goods and services provided by the following types of related parties: a parent company and its subsidiaries, subsidiaries of a common parent, an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entities' management, an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence.
    Fact IncreaseDecreaseInAccountsPayableRelatedParties
    Label Increase (Decrease) in Accounts Payable, Related Parties
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 9,405,000
  99. Description The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.
    Fact IncomeTaxesPaid
    Label Income Taxes Paid
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 16,682,000
  100. Description Carrying amount as of the balance sheet date of expenditures made in advance of when the economic benefit of the cost will be realized, and which will be expensed in future periods with the passage of time or when a triggering event occurs.
    Fact PrepaidExpenseCurrentAndNoncurrent
    Frame CY2011Q4I
    Label Prepaid Expense
    Taxonomy us-gaap
    Unit USD
    Val 22,540,000
  101. Description Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.
    Fact DebtInstrumentFairValue
    Frame CY2011Q4I
    Label Debt Instrument, Fair Value Disclosure
    Taxonomy us-gaap
    Unit USD
    Val 16,007,000
  102. Description Fair value as of the balance sheet date of all foreign currency derivative liabilities not designated as hedging instruments.
    Fact ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
    Frame CY2011Q4I
    Label Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 334,000
  103. Description Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.
    Fact OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
    Label OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 671,000
  104. Description Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact CurrentFederalTaxExpenseBenefit
    Label Current Federal Tax Expense (Benefit)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,292,000
  105. Description The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.
    Fact LongTermDebtFairValue
    Frame CY2011Q4I
    Label Long-term Debt, Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 314,938,000
  106. Description Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.
    Fact NetCashProvidedByUsedInInvestingActivities
    Label Net Cash Provided by (Used in) Investing Activities
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -92,646,000
  107. Description Aggregate notional amount of all foreign currency derivatives not designated as hedging instruments. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.
    Fact NotionalAmountOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments
    Frame CY2011Q4I
    Label Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments (Deprecated 2013-01-31)
    Taxonomy us-gaap
    Unit USD
    Val 234,100,000
  108. Description Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.
    Fact GoodwillAcquiredDuringPeriod
    Frame CY2011
    Label Goodwill, Acquired During Period
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 59,540,000
  109. Description Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.
    Fact CashAndCashEquivalentsPeriodIncreaseDecrease
    Label Cash and Cash Equivalents, Period Increase (Decrease)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 5,609,000
  110. Description For an unclassified balance sheet, amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership.
    Fact DueFromAffiliates
    Frame CY2011Q4I
    Label Due from Affiliates
    Taxonomy us-gaap
    Unit USD
    Val 5,754,000
  111. Description Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as a liability.
    Fact DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
    Frame CY2011Q4I
    Label Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 334,000
  112. Description Amount of the cost of borrowed funds accounted for as interest expense.
    Fact InterestExpense
    Label Interest Expense
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 24,606,000
  113. Description Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.
    Fact LeaseAndRentalExpense
    Label Operating Leases, Rent Expense
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 31,800,000
  114. Description Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.
    Fact CashAndCashEquivalentsAtCarryingValue
    Label Cash and Cash Equivalents, at Carrying Value
    Taxonomy us-gaap
    Unit USD
    Val 369,713,000
  115. Description Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.
    Fact DeferredTaxAssetsLiabilitiesNet
    Frame CY2011Q4I
    Label Deferred Tax Assets, Net
    Taxonomy us-gaap
    Unit USD
    Val 18,651,000
  116. Description Amount of right to receive cash and securities on deposit with clearing organizations. Clearing organizations perform post trade processing and trade comparisons among numerous broker-dealers and act as settlement agents between buying and selling broker-dealers.
    Fact ReceivablesFromClearingOrganizations
    Frame CY2011Q4I
    Label Receivables from Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 48,681,000
  117. Description Amount of noncash expense for share-based payment arrangement.
    Fact ShareBasedCompensation
    Frame CY2011
    Label Share-based Payment Arrangement, Noncash Expense
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 125,099,000
  118. Description The amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. For cash flows, this element primarily pertains to amortization of deferred credits on long-term arrangements. As a noncash item, it is deducted from net income when calculating cash provided by or used in operations using the indirect method.
    Fact RecognitionOfDeferredRevenue
    Label Recognition of Deferred Revenue
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 4,583,000
  119. Description Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.
    Fact DeferredTaxAssetsOperatingLossCarryforwards
    Frame CY2011Q4I
    Label Deferred Tax Assets, Operating Loss Carryforwards
    Taxonomy us-gaap
    Unit USD
    Val 32,128,000
  120. Description Amount receivable as the result of a fail-to-deliver. A fail-to-deliver is a securities sale to another broker-dealer that has not been delivered to buying broker-dealer by the close of business on the settlement date.
    Fact SecuritiesFailedToDeliver
    Frame CY2011Q4I
    Label Securities Failed-to-Deliver
    Taxonomy us-gaap
    Unit USD
    Val 130,675,000
  121. Description Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests.
    Fact OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
    Label Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 17,690,000
  122. Description Aggregate notional amount of all interest rate derivatives not designated as hedging instruments. Notional amount refers to the monetary amount specified in the interest rate derivative contract.
    Fact NotionalAmountOfInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments
    Frame CY2011Q4I
    Label Notional Amount of Interest Rate Derivative Instruments Not Designated as Hedging Instruments (Deprecated 2013-01-31)
    Taxonomy us-gaap
    Unit USD
    Val 1,200,000,000
  123. Description Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.
    Fact DeferredTaxAssetsGross
    Frame CY2011Q4I
    Label Deferred Tax Assets, Gross
    Taxonomy us-gaap
    Unit USD
    Val 58,847,000
  124. Description Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).
    Fact MinorityInterest
    Frame CY2011Q4I
    Label Stockholders' Equity Attributable to Noncontrolling Interest
    Taxonomy us-gaap
    Unit USD
    Val 98,044,000
  125. Description The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.
    Fact RepaymentsOfSecuredDebt
    Label Repayments of Secured Debt
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 17,272,000
  126. Description Total change in each class of partners' capital accounts during the year due to redemptions and adjustments to redemption value. All partners include general, limited and preferred partners.
    Fact PartnersCapitalAccountRedemptions
    Label Partners' Capital Account, Redemptions
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -1,841,000
  127. Description Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.
    Fact DeferredTaxLiabilitiesPropertyPlantAndEquipment
    Frame CY2011Q4I
    Label Deferred Tax Liabilities, Property, Plant and Equipment
    Taxonomy us-gaap
    Unit USD
    Val 563,000
  128. Description Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.
    Fact TreasuryStockValueAcquiredCostMethod
    Label Treasury Stock, Value, Acquired, Cost Method
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 392,000
  129. Description Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact CurrentForeignTaxExpenseBenefit
    Label Current Foreign Tax Expense (Benefit)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 9,853,000
  130. Description Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.
    Fact IndefiniteLivedIntangibleAssetsExcludingGoodwill
    Frame CY2011Q4I
    Label Indefinite-lived Intangible Assets (Excluding Goodwill)
    Taxonomy us-gaap
    Unit USD
    Val 5,848,000
  131. Description Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.
    Fact WeightedAverageNumberOfSharesOutstandingBasic
    Label Weighted Average Number of Shares Outstanding, Basic
    Start 2011-01-01
    Taxonomy us-gaap
    Unit shares
    Val 116,132,000
  132. Description Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.
    Fact OperatingExpenses
    Label Operating Expenses
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,410,326,000
  133. Description The aggregate amount to be paid by the entity upon redemption of the security that is classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.
    Fact TemporaryEquityRedemptionValue
    Label Temporary Equity, Redemption Value (Deprecated 2014-01-31)
    Taxonomy us-gaap
    Unit USD
    Val 86,269,000
  134. Description Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.
    Fact AssetsFairValueDisclosure
    Frame CY2011Q4I
    Label Assets, Fair Value Disclosure
    Taxonomy us-gaap
    Unit USD
    Val 18,705,000
  135. Description Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.
    Fact NetIncomeLossAvailableToCommonStockholdersDiluted
    Label Net Income (Loss) Available to Common Stockholders, Diluted
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 20,137,000
  136. Description Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other.
    Fact DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther
    Frame CY2011Q4I
    Label Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other
    Taxonomy us-gaap
    Unit USD
    Val 2,781,000
  137. Description Amount receivable from broker-dealers and clearing organizations, including, but not limited to, securities failed-to-deliver, certain deposits for securities borrowed, open transactions, good faith and margin deposits, commissions and floor brokerage receivables.
    Fact ReceivablesFromBrokersDealersAndClearingOrganizations
    Frame CY2011Q4I
    Label Receivables from Brokers-Dealers and Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 192,053,000
  138. Description Amount due from customers for fees and charges arising from transactions related to the entity's brokerage activities and operations.
    Fact ReceivablesFromCustomers
    Frame CY2011Q4I
    Label Receivables from Customers
    Taxonomy us-gaap
    Unit USD
    Val 222,293,000
  139. Description Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.
    Fact Liabilities
    Frame CY2011Q4I
    Label Liabilities
    Taxonomy us-gaap
    Unit USD
    Val 904,218,000
  140. Description Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.
    Fact PropertyPlantAndEquipmentGross
    Frame CY2011Q4I
    Label Property, Plant and Equipment, Gross
    Taxonomy us-gaap
    Unit USD
    Val 448,740,000
  141. Description Number of share options (or share units) exercised during the current period.
    Fact StockIssuedDuringPeriodSharesStockOptionsExercised
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
    Start 2011-01-01
    Taxonomy us-gaap
    Unit shares
    Val 2,047,249
  142. Description Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.
    Fact Assets
    Frame CY2011Q4I
    Label Assets
    Taxonomy us-gaap
    Unit USD
    Val 1,405,185,000
  143. Description Amount of cash subject to withdrawal restrictions, restricted deposits held as compensating balances, and cash and securities segregated in compliance with regulations (such as cash deposited in a special reserve account for the exclusive benefit of customers).
    Fact CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations
    Frame CY2011Q4I
    Label Cash and Securities Segregated under Federal and Other Regulations
    Taxonomy us-gaap
    Unit USD
    Val 2,968,000
  144. Description Amount of other receivables due from broker-dealers or clearing organizations.
    Fact OtherReceivablesFromBrokerDealersAndClearingOrganizations
    Frame CY2011Q4I
    Label Other Receivables from Broker-Dealers and Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 8,060,000
  145. Description The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.
    Fact EarningsPerShareBasic
    Label Earnings Per Share, Basic
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.17
  146. Description The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
    Start 2011-01-01
    Taxonomy us-gaap
    Unit shares
    Val 76,225
  147. Description The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.
    Fact NetIncomeLoss
    Label Net Income (Loss) Attributable to Parent
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 20,137,000
  148. Description Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.
    Fact UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
    Frame CY2011
    Label Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 675,000
  149. Description Amount of expense classified as other.
    Fact OtherExpenses
    Label Other Expenses
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 69,584,000
  150. Description Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.
    Fact SecuredDebt
    Frame CY2011Q4I
    Label Secured Debt
    Taxonomy us-gaap
    Unit USD
    Val 5,200,000
  151. Description Amount of deferred tax liability attributable to taxable temporary differences from capitalized software.
    Fact DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware
    Frame CY2011Q4I
    Label Deferred Tax Liabilities, Deferred Expense, Capitalized Software
    Taxonomy us-gaap
    Unit USD
    Val 3,408,000
  152. Description The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.
    Fact TreasuryStockValue
    Frame CY2011Q4I
    Label Treasury Stock, Value
    Taxonomy us-gaap
    Unit USD
    Val 109,870,000
  153. Description Amount payable as the result of fail-to-receive. A fail-to-receive is a securities purchase from another broker-dealer not received from the selling broker-dealer by the close of business on the settlement date.
    Fact SecuritiesFailedToReceive
    Frame CY2011Q4I
    Label Securities Failed-to-Receive
    Taxonomy us-gaap
    Unit USD
    Val 124,282,000
  154. Description The cash outflow to reacquire common stock during the period.
    Fact PaymentsForRepurchaseOfCommonStock
    Label Payments for Repurchase of Common Stock
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 392,000
  155. Description The increase (decrease) during the reporting period in the aggregate value of financial instruments used in operating activities, including trading securities, risk management instruments, and other short-term trading instruments.
    Fact IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities
    Label Increase (Decrease) in Financial Instruments Used in Operating Activities
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 5,695,000
  156. Description Net number of non-option equity instruments granted to participants.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted
    Frame CY2011
    Label Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted
    Start 2011-01-01
    Taxonomy us-gaap
    Unit shares
    Val 21,244,357
  157. Description The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.
    Fact ProceedsFromShortTermDebt
    Label Proceeds from Short-term Debt
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 30,000,000
  158. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).
    Fact IncomeTaxReconciliationForeignIncomeTaxRateDifferential
    Label Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -2,446,000
  159. Description The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.
    Fact SecurityDeposit
    Frame CY2011Q4I
    Label Security Deposit
    Taxonomy us-gaap
    Unit USD
    Val 12,312,000
  160. Description Amount payable to broker-dealers and clearing organizations, including, but not limited to, securities failed-to-receive, certain deposits received for securities loaned, open transactions, and floor-brokerage payables.
    Fact PayablesToBrokerDealersAndClearingOrganizations
    Frame CY2011Q4I
    Label Payables to Broker-Dealers and Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 144,683,000
  161. Description Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.
    Fact EmployeeRelatedLiabilitiesCurrentAndNoncurrent
    Frame CY2011Q4I
    Label Employee-related Liabilities
    Taxonomy us-gaap
    Unit USD
    Val 143,800,000
  162. Description The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.
    Fact WeightedAverageNumberOfDilutedSharesOutstanding
    Label Weighted Average Number of Shares Outstanding, Diluted
    Start 2011-01-01
    Taxonomy us-gaap
    Unit shares
    Val 116,514,000
  163. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.
    Fact IncomeTaxReconciliationOtherReconcilingItems
    Label Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -293,000
  164. Description Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities.
    Fact InterestIncomeOperating
    Label Interest Income, Operating
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 5,441,000
  165. Description Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.
    Fact RevenueFromRelatedParties
    Label Revenue from Related Parties
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 62,227,000
  166. Description Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.
    Fact LongTermDebt
    Frame CY2011Q4I
    Label Long-term Debt
    Taxonomy us-gaap
    Unit USD
    Val 288,976,000
  167. Description Number of equity instruments other than options outstanding, including both vested and non-vested instruments.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
    Frame CY2011Q4I
    Label Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number
    Taxonomy us-gaap
    Unit shares
    Val 45,814,354
  168. Description Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.
    Fact StockholdersEquity
    Frame CY2011Q4I
    Label Stockholders' Equity Attributable to Parent
    Taxonomy us-gaap
    Unit USD
    Val 316,654,000
  169. Description Number of options outstanding, including both vested and non-vested options.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
    Taxonomy us-gaap
    Unit shares
    Val 8,256,066
  170. Description Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments.
    Fact InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
    Frame CY2011Q4I
    Label Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value
    Taxonomy us-gaap
    Unit USD
    Val 1,185,000
  171. Description Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredStateAndLocalIncomeTaxExpenseBenefit
    Label Deferred State and Local Income Tax Expense (Benefit)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -645,000
  172. Description Amount of revenue from market data services, including, but not limited to, information about current quotes and most recent prices for a specific security.
    Fact MarketDataRevenue
    Label Market Data Revenue
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 17,772,000
  173. Description Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
    Fact GoodwillTranslationAdjustments
    Frame CY2011
    Label Goodwill, Translation Adjustments (Deprecated 2016-01-31)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -1,251,000
  174. Description Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.
    Fact NetCashProvidedByUsedInOperatingActivities
    Label Net Cash Provided by (Used in) Operating Activities
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 85,344,000
  175. Description Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.
    Fact FiniteLivedIntangibleAssetsGross
    Frame CY2011Q4I
    Label Finite-Lived Intangible Assets, Gross
    Taxonomy us-gaap
    Unit USD
    Val 64,142,000
  176. Description Amount of allowance for credit loss on accounts receivable, classified as current.
    Fact AllowanceForDoubtfulAccountsReceivableCurrent
    Frame CY2011Q4I
    Label Accounts Receivable, Allowance for Credit Loss, Current
    Taxonomy us-gaap
    Unit USD
    Val 9,200,000
  177. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit.
    Fact IncomeTaxReconciliationTaxCreditsResearch
    Label Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 423,000
  178. Description Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.
    Fact StockIssuedDuringPeriodValueNewIssues
    Label Stock Issued During Period, Value, New Issues
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 26,765,000
  179. Description Amount of deferred tax liability attributable to taxable temporary differences.
    Fact DeferredIncomeTaxLiabilities
    Frame CY2011Q4I
    Label Deferred Tax Liabilities, Gross
    Taxonomy us-gaap
    Unit USD
    Val 5,567,000
  180. Description The portion of net income or loss attributable to temporary equity interest.
    Fact TemporaryEquityNetIncome
    Frame CY2011
    Label Temporary Equity, Net Income
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 6,715,000
  181. Description Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.
    Fact AccumulatedOtherComprehensiveIncomeLossNetOfTax
    Frame CY2011Q4I
    Label Accumulated Other Comprehensive Income (Loss), Net of Tax
    Taxonomy us-gaap
    Unit USD
    Val -3,752,000
  182. Description Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).
    Fact Revenues
    Label Revenues
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,464,685,000
  183. Description Amount of income (loss) for proportionate share of equity method investee's income (loss).
    Fact IncomeLossFromEquityMethodInvestments
    Label Income (Loss) from Equity Method Investments
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -6,605,000
  184. Description Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.
    Fact AccruedLiabilitiesAndOtherLiabilities
    Frame CY2011Q4I
    Label Accrued Liabilities and Other Liabilities
    Taxonomy us-gaap
    Unit USD
    Val 150,771,000
  185. Description Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense.
    Fact OccupancyNet
    Label Occupancy, Net
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 129,087,000
  186. Description The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.
    Fact IncomeTaxExaminationPenaltiesAndInterestAccrued
    Frame CY2011Q4I
    Label Income Tax Examination, Penalties and Interest Accrued
    Taxonomy us-gaap
    Unit USD
    Val 0
  187. Description Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.
    Fact DeferredTaxAssetsPropertyPlantAndEquipment
    Frame CY2011Q4I
    Label Deferred Tax Assets, Property, Plant and Equipment
    Taxonomy us-gaap
    Unit USD
    Val 8,048,000
  188. Description Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredForeignIncomeTaxExpenseBenefit
    Label Deferred Foreign Income Tax Expense (Benefit)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val -294,000
  189. Description Amount payable to broker-dealers or clearing organizations for executing or clearing trades or orders.
    Fact CommissionsPayableToBrokerDealersAndClearingOrganizations
    Frame CY2011Q4I
    Label Commissions Payable to Broker-Dealers and Clearing Organizations
    Taxonomy us-gaap
    Unit USD
    Val 5,077,000
  190. Description The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.
    Fact DepreciationDepletionAndAmortization
    Label Depreciation, Depletion and Amortization
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 49,281,000
  191. Description Amount of deferred tax liability attributable to taxable temporary differences classified as other.
    Fact DeferredTaxLiabilitiesOther
    Frame CY2011Q4I
    Label Deferred Tax Liabilities, Other
    Taxonomy us-gaap
    Unit USD
    Val 1,596,000
  192. Description The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.
    Fact PaymentsToAcquireEquityMethodInvestments
    Label Payments to Acquire Equity Method Investments
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,749,000
  193. Description Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact CurrentStateAndLocalTaxExpenseBenefit
    Label Current State and Local Tax Expense (Benefit)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,319,000
  194. Description The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.
    Fact IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
    Label Income (Loss) from Continuing Operations before Income Taxes, Foreign
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 41,100,000
  195. Description Amount of increase (decrease) in operating assets classified as other.
    Fact IncreaseDecreaseInOtherOperatingAssets
    Label Increase (Decrease) in Other Operating Assets
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 10,413,000
  196. Description Revenue from providing technology services. The services may include training, installation, engineering or consulting. Consulting services often include implementation support, software design or development, or the customization or modification of the licensed software.
    Fact TechnologyServicesRevenue
    Label Technology Services Revenue (Deprecated 2018-01-31)
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 9,190,000
  197. Description Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.
    Fact IntangibleAssetsNetExcludingGoodwill
    Frame CY2011Q4I
    Label Intangible Assets, Net (Excluding Goodwill)
    Taxonomy us-gaap
    Unit USD
    Val 16,994,000
  198. Description This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.
    Fact AvailableForSaleSecuritiesFairValueDisclosure
    Frame CY2011Q4I
    Label Available-for-sale Securities, Fair Value Disclosure (Deprecated 2013-01-31)
    Taxonomy us-gaap
    Unit USD
    Val 1,238,000
  199. Description Amount of cash inflow from exercise of option under share-based payment arrangement.
    Fact ProceedsFromStockOptionsExercised
    Label Proceeds from Stock Options Exercised
    Start 2011-01-01
    Taxonomy us-gaap
    Unit USD
    Val 8,812,000
  200. Description Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.
    Fact FiniteLivedIntangibleAssetsAccumulatedAmortization
    Frame CY2011Q4I
    Label Finite-Lived Intangible Assets, Accumulated Amortization
    Taxonomy us-gaap
    Unit USD
    Val 52,996,000
  201. Description Number of shares under non-option equity instrument agreements that were either cancelled or expired.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations
    Frame CY2011
    Label Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations
    Start 2011-01-01
    Taxonomy us-gaap
    Unit shares
    Val 5,116,022

Facts up to 2010-12-31

  1. Description Revenues from operations, excluding interest and dividend income. Includes revenues from the following sources: investment banking (underwriting and financial advisory), principal transactions (sales and trading, and investment gains and losses), commissions, asset management, and investment advisory and other services.
    Fact RevenuesExcludingInterestAndDividends
    Frame CY2010
    Label Revenues, Excluding Interest and Dividends
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,327,804,000
  2. Description The cash inflow from the additional capital contribution to the entity.
    Fact ProceedsFromIssuanceOfCommonStock
    Frame CY2010
    Label Proceeds from Issuance of Common Stock
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 15,160,000
  3. Description The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.
    Fact EarningsPerShareDiluted
    Frame CY2010
    Label Earnings Per Share, Diluted
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.24
  4. Description Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.
    Fact IncomeTaxExpenseBenefit
    Frame CY2010
    Label Income Tax Expense (Benefit)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 11,543,000
  5. Description Amount of realized and unrealized gain (loss) resulting from the difference between acquisition price and selling price or fair value of trading assets and trading liabilities, and from the firm's direct investment activity, conducted separately from customer trading activities, including, but not limited to, investments in private equity, alternative investment products, real estate, and exchanges and memberships.
    Fact PrincipalTransactionsRevenue
    Frame CY2010
    Label Principal Transactions Revenue, Net
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 377,581,000
  6. Description Impairment recognized during the period and allocated to the reportable segment that results from the write-down of indefinite-lived intangible assets after comparing the implied fair value of reporting unit indefinite-lived intangible assets with the carrying amount of that indefinite-lived intangible assets, which are assessed at least annually for impairment.
    Fact IndefiniteLivedIntangibleAssetsImpairmentLosses
    Frame CY2010
    Label Indefinite-lived Intangible Assets, Impairment Losses (Deprecated 2013-01-31)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 0
  7. Description The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.
    Fact Depreciation
    Frame CY2010
    Label Depreciation
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 34,100,000
  8. Description Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
    Fact Goodwill
    Frame CY2010Q4I
    Label Goodwill
    Taxonomy us-gaap
    Unit USD
    Val 82,853,000
  9. Description The amount of expense during the period for floor brokerage fees paid to other broker-dealers to execute trades on their behalf, stock exchange fees, order flow fees, and clearance fees.
    Fact FloorBrokerageExchangeAndClearanceFees
    Frame CY2010
    Label Floor Brokerage, Exchange and Clearance Fees
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 20,055,000
  10. Description Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.
    Fact ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
    Frame CY2010
    Label Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 18.6
  11. Description Amount after tax and reclassification adjustments of other comprehensive income (loss).
    Fact OtherComprehensiveIncomeLossNetOfTax
    Frame CY2010
    Label Other Comprehensive Income (Loss), Net of Tax
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -1,486,000
  12. Description Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.
    Fact MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
    Frame CY2010
    Label Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 45,192,000
  13. Description The amount of expense incurred in the period for communication, which is the exchange of information by several methods.
    Fact Communication
    Frame CY2010
    Label Communication
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 78,249,000
  14. Description Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.
    Fact NetCashProvidedByUsedInFinancingActivities
    Frame CY2010
    Label Net Cash Provided by (Used in) Financing Activities
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -99,736,000
  15. Description Amount of Net Income (Loss) attributable to noncontrolling interest.
    Fact NetIncomeLossAttributableToNoncontrollingInterest
    Frame CY2010
    Label Net Income (Loss) Attributable to Noncontrolling Interest
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 24,210,000
  16. Description Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredIncomeTaxExpenseBenefit
    Frame CY2010
    Label Deferred Income Tax Expense (Benefit)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -2,932,000
  17. Description The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.
    Fact IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
    Frame CY2010
    Label Income (Loss) from Continuing Operations before Income Taxes, Domestic
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 13,000,000
  18. Description Other cash or noncash adjustments to reconcile net income to cash provided by (used in) operating activities that are not separately disclosed in the statement of cash flows (for example, cash received or cash paid during the current period for miscellaneous operating activities, net change during the reporting period in other assets or other liabilities).
    Fact OtherOperatingActivitiesCashFlowStatement
    Frame CY2010
    Label Other Operating Activities, Cash Flow Statement
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 546,000
  19. Description The cash outflow associated with the development, modification or acquisition of software programs or applications for internal use (that is, not to be sold, leased or otherwise marketed to others) that qualify for capitalization.
    Fact PaymentsForSoftware
    Frame CY2010
    Label Payments for Software
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -14,831,000
  20. Description Weighted average price at which option holders acquired shares when converting their stock options into shares.
    Fact ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
    Frame CY2010
    Label Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 8.1
  21. Description Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.
    Fact NetIncomeLossAvailableToCommonStockholdersBasic
    Frame CY2010
    Label Net Income (Loss) Available to Common Stockholders, Basic
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 21,162,000
  22. Description The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.
    Fact ProceedsFromIssuanceOfSecuredDebt
    Frame CY2010
    Label Proceeds from Issuance of Secured Debt
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 29,764,000
  23. Description The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.
    Fact PaymentsToAcquirePropertyPlantAndEquipment
    Frame CY2010
    Label Payments to Acquire Property, Plant, and Equipment
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 29,106,000
  24. Description The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.
    Fact ProfitLoss
    Frame CY2010
    Label Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 45,372,000
  25. Description The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.
    Fact AmortizationOfIntangibleAssets
    Frame CY2010
    Label Amortization of Intangible Assets
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 4,100,000
  26. Description Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.
    Fact ComprehensiveIncomeNetOfTax
    Frame CY2010
    Label Comprehensive Income (Loss), Net of Tax, Attributable to Parent
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 20,221,000
  27. Description Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.
    Fact StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
    Label Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
    Taxonomy us-gaap
    Unit USD
    Val 331,856,000
  28. Description Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies.
    Fact EffectOfExchangeRateOnCashAndCashEquivalents
    Frame CY2010
    Label Effect of Exchange Rate on Cash and Cash Equivalents
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -3,188,000
  29. Description Aggregate dividends declared during the period for each share of common stock outstanding.
    Fact CommonStockDividendsPerShareDeclared
    Frame CY2010
    Label Common Stock, Dividends, Per Share, Declared
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.48
  30. Description This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy.
    Fact StockholdersEquityOther
    Frame CY2010
    Label Stockholders' Equity, Other
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -2,735,000
  31. Description Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.
    Fact PaymentsRelatedToTaxWithholdingForShareBasedCompensation
    Frame CY2010
    Label Payment, Tax Withholding, Share-based Payment Arrangement
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 2,246,000
  32. Description Amount of unrecognized tax benefits.
    Fact UnrecognizedTaxBenefits
    Frame CY2010Q4I
    Label Unrecognized Tax Benefits
    Taxonomy us-gaap
    Unit USD
    Val 3,521,000
  33. Description Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.
    Fact OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
    Frame CY2010
    Label Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -1,149,000
  34. Description The increase (decrease) during the reporting period in other obligations or expenses incurred but not yet paid.
    Fact IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities
    Frame CY2010
    Label Increase (Decrease) in Other Accounts Payable and Accrued Liabilities
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 10,449,000
  35. Description The increase (decrease) during the reporting period in the total amount due to the entity related to activities and operations with other broker dealers, and clearing organizations, including deposits.
    Fact IncreaseDecreaseInBrokerageReceivables
    Frame CY2010
    Label Increase (Decrease) in Receivables from Brokers-Dealers and Clearing Organizations
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 22,195,000
  36. Description Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
    Taxonomy us-gaap
    Unit USD
    Val 6,626,196
  37. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to noncontrolling interest income (loss) exempt from income taxes.
    Fact IncomeTaxReconciliationMinorityInterestIncomeExpense
    Frame CY2010
    Label Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 2,205,000
  38. Description The increase (decrease) during the reporting period in receivables to be collected from an entity that is controlling, under the control of, or within the same control group as the reporting entity by means of direct or indirect ownership.
    Fact IncreaseDecreaseDueFromAffiliates
    Frame CY2010
    Label Increase (Decrease) Due from Affiliates
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -7,959,000
  39. Description Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredFederalIncomeTaxExpenseBenefit
    Frame CY2010
    Label Deferred Federal Income Tax Expense (Benefit)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 992,000
  40. Description Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.
    Fact AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
    Frame CY2010
    Label Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
    Start 2010-01-01
    Taxonomy us-gaap
    Unit shares
    Val 26,600,000
  41. Description Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.
    Fact AssetImpairmentCharges
    Frame CY2010
    Label Asset Impairment Charges
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 294,000
  42. Description Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.
    Fact IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
    Frame CY2010
    Label Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 56,915,000
  43. Description The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as operating activities. This may include cash restricted for regulatory purposes.
    Fact IncreaseDecreaseInRestrictedCashForOperatingActivities
    Frame CY2010
    Label Increase (Decrease) in Restricted Cash for Operating Activities
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 198,000
  44. Description Amount of commission revenue from buying and selling securities on behalf of customers.
    Fact BrokerageCommissionsRevenue
    Frame CY2010
    Label Brokerage Commissions Revenue
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 851,089,000
  45. Description Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.
    Fact InterestPaid
    Frame CY2010
    Label Interest Paid, Including Capitalized Interest, Operating and Investing Activities
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 9,363,000
  46. Description Amount of cash outflow for purchase of marketable security.
    Fact PaymentsToAcquireMarketableSecurities
    Frame CY2010
    Label Payments to Acquire Marketable Securities
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 3,002,000
  47. Description A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.
    Fact ProfessionalFees
    Frame CY2010
    Label Professional Fees
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 45,238,000
  48. Description "The increase (decrease) during the reporting period in the liability Securities Sold, Not yet Purchased. Proprietary securities transactions entered into by the broker-dealer for trading or investment purposes are included in ""Securities Owned and Securities Sold, Not Yet Purchased."" Although proprietary trading is frequently thought of as purchasing securities for sale to others, trading securities for the broker-dealer's own account sometimes leads to a liability for the fair value of securities sold but not yet purchased, that is, sold short. The broker-dealer is then obliged to purchase the securities at a future date at the then-current market price."
    Fact IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased
    Frame CY2010
    Label Increase (Decrease) in Financial Instruments Sold, Not yet Purchased
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -11,000
  49. Description Aggregate dividends paid during the period for each share of common stock outstanding.
    Fact CommonStockDividendsPerShareCashPaid
    Frame CY2010
    Label Common Stock, Dividends, Per Share, Cash Paid
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.48
  50. Description The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.
    Fact IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
    Frame CY2010
    Label Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 19,920,000
  51. Description The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.
    Fact PaymentsToAcquireBusinessesNetOfCashAcquired
    Frame CY2010
    Label Payments to Acquire Businesses, Net of Cash Acquired
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 4,382,000
  52. Description Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.
    Fact CurrentIncomeTaxExpenseBenefit
    Frame CY2010
    Label Current Income Tax Expense (Benefit)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 14,475,000
  53. Description Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).
    Fact DividendsCommonStock
    Frame CY2010
    Label Dividends, Common Stock
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 42,606,000
  54. Description Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.
    Fact AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
    Frame CY2010
    Label APIC, Share-based Payment Arrangement, Increase for Cost Recognition
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 7,732,000
  55. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).
    Fact IncomeTaxReconciliationStateAndLocalIncomeTaxes
    Frame CY2010
    Label Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 235,000
  56. Description Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
    Taxonomy us-gaap
    Unit USD/shares
    Val 12.34
  57. Description The increase (decrease) during the period in accrued salaries.
    Fact IncreaseDecreaseInAccruedSalaries
    Frame CY2010
    Label Increase (Decrease) in Accrued Salaries
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 12,485,000
  58. Description The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.
    Fact RepaymentsOfLongTermDebt
    Frame CY2010
    Label Repayments of Long-term Debt
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 150,000,000
  59. Description Amount of revenue and income classified as other.
    Fact OtherIncome
    Frame CY2010
    Label Other Income
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 13,960,000
  60. Description Payroll costs incurred (including equity-based compensation) that are directly related to services rendered by an entity during the reporting period.
    Fact CostOfServicesDirectLabor
    Frame CY2010
    Label Cost of Services, Direct Labor (Deprecated 2018-01-31)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 838,717,000
  61. Description Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.
    Fact ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
    Frame CY2010
    Label Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 43,886,000
  62. Description Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.
    Fact PaymentsOfDividendsCommonStock
    Frame CY2010
    Label Payments of Ordinary Dividends, Common Stock
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 42,606,000
  63. Description The increase (decrease) during the reporting period in the obligations due for goods and services provided by the following types of related parties: a parent company and its subsidiaries, subsidiaries of a common parent, an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entities' management, an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence.
    Fact IncreaseDecreaseInAccountsPayableRelatedParties
    Frame CY2010
    Label Increase (Decrease) in Accounts Payable, Related Parties
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -53,907,000
  64. Description The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.
    Fact IncomeTaxesPaid
    Frame CY2010
    Label Income Taxes Paid
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 20,873,000
  65. Description Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.
    Fact OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
    Frame CY2010
    Label OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -337,000
  66. Description Value of stock issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).
    Fact StockIssuedDuringPeriodValueConversionOfUnits
    Frame CY2010
    Label Stock Issued During Period, Value, Conversion of Units
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 16,323,000
  67. Description Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact CurrentFederalTaxExpenseBenefit
    Frame CY2010
    Label Current Federal Tax Expense (Benefit)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,863,000
  68. Description Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.
    Fact NetCashProvidedByUsedInInvestingActivities
    Frame CY2010
    Label Net Cash Provided by (Used in) Investing Activities
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -61,185,000
  69. Description Value of stock issued as a result of the exercise of stock options.
    Fact StockIssuedDuringPeriodValueStockOptionsExercised
    Frame CY2010
    Label Stock Issued During Period, Value, Stock Options Exercised
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 463,000
  70. Description Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.
    Fact CashAndCashEquivalentsPeriodIncreaseDecrease
    Frame CY2010
    Label Cash and Cash Equivalents, Period Increase (Decrease)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -105,197,000
  71. Description Amount of the cost of borrowed funds accounted for as interest expense.
    Fact InterestExpense
    Frame CY2010
    Label Interest Expense
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 14,080,000
  72. Description Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.
    Fact LeaseAndRentalExpense
    Frame CY2010
    Label Operating Leases, Rent Expense
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 25,600,000
  73. Description Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.
    Fact CashAndCashEquivalentsAtCarryingValue
    Label Cash and Cash Equivalents, at Carrying Value
    Taxonomy us-gaap
    Unit USD
    Val 364,104,000
  74. Description Amount of noncash expense for share-based payment arrangement.
    Fact ShareBasedCompensation
    Frame CY2010
    Label Share-based Payment Arrangement, Noncash Expense
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 25,705,000
  75. Description The amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. For cash flows, this element primarily pertains to amortization of deferred credits on long-term arrangements. As a noncash item, it is deducted from net income when calculating cash provided by or used in operations using the indirect method.
    Fact RecognitionOfDeferredRevenue
    Frame CY2010
    Label Recognition of Deferred Revenue
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 5,371,000
  76. Description Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests.
    Fact OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
    Frame CY2010
    Label Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 23,665,000
  77. Description The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates.
    Fact ProceedsFromRelatedPartyDebt
    Frame CY2010
    Label Proceeds from Related Party Debt
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 150,000,000
  78. Description The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.
    Fact RepaymentsOfSecuredDebt
    Frame CY2010
    Label Repayments of Secured Debt
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 8,092,000
  79. Description Total change in each class of partners' capital accounts during the year due to redemptions and adjustments to redemption value. All partners include general, limited and preferred partners.
    Fact PartnersCapitalAccountRedemptions
    Frame CY2010
    Label Partners' Capital Account, Redemptions
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -23,838,000
  80. Description Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.
    Fact TreasuryStockValueAcquiredCostMethod
    Frame CY2010
    Label Treasury Stock, Value, Acquired, Cost Method
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 19,871,000
  81. Description Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact CurrentForeignTaxExpenseBenefit
    Frame CY2010
    Label Current Foreign Tax Expense (Benefit)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 10,668,000
  82. Description Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.
    Fact WeightedAverageNumberOfSharesOutstandingBasic
    Frame CY2010
    Label Weighted Average Number of Shares Outstanding, Basic
    Start 2010-01-01
    Taxonomy us-gaap
    Unit shares
    Val 88,294,000
  83. Description Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.
    Fact OperatingExpenses
    Frame CY2010
    Label Operating Expenses
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,274,197,000
  84. Description The aggregate amount to be paid by the entity upon redemption of the security that is classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.
    Fact TemporaryEquityRedemptionValue
    Frame CY2010Q4I
    Label Temporary Equity, Redemption Value (Deprecated 2014-01-31)
    Taxonomy us-gaap
    Unit USD
    Val 93,186,000
  85. Description Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.
    Fact NetIncomeLossAvailableToCommonStockholdersDiluted
    Frame CY2010
    Label Net Income (Loss) Available to Common Stockholders, Diluted
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 53,756,000
  86. Description Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.
    Fact UnrecognizedTaxBenefitsPeriodIncreaseDecrease
    Frame CY2010
    Label Unrecognized Tax Benefits, Period Increase (Decrease)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -1,393,000
  87. Description Number of share options (or share units) exercised during the current period.
    Fact StockIssuedDuringPeriodSharesStockOptionsExercised
    Frame CY2010
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
    Start 2010-01-01
    Taxonomy us-gaap
    Unit shares
    Val 96,610
  88. Description The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.
    Fact EarningsPerShareBasic
    Frame CY2010
    Label Earnings Per Share, Basic
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD/shares
    Val 0.24
  89. Description The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
    Frame CY2010
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
    Start 2010-01-01
    Taxonomy us-gaap
    Unit shares
    Val 1,196,029
  90. Description The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.
    Fact NetIncomeLoss
    Frame CY2010
    Label Net Income (Loss) Attributable to Parent
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 21,162,000
  91. Description Amount of expense classified as other.
    Fact OtherExpenses
    Frame CY2010
    Label Other Expenses
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 59,515,000
  92. Description The cash outflow to reacquire common stock during the period.
    Fact PaymentsForRepurchaseOfCommonStock
    Frame CY2010
    Label Payments for Repurchase of Common Stock
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 19,871,000
  93. Description The increase (decrease) during the reporting period in the aggregate value of financial instruments used in operating activities, including trading securities, risk management instruments, and other short-term trading instruments.
    Fact IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities
    Frame CY2010
    Label Increase (Decrease) in Financial Instruments Used in Operating Activities
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 8,355,000
  94. Description Net number of non-option equity instruments granted to participants.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted
    Frame CY2010
    Label Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted
    Start 2010-01-01
    Taxonomy us-gaap
    Unit shares
    Val 21,899,941
  95. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).
    Fact IncomeTaxReconciliationForeignIncomeTaxRateDifferential
    Frame CY2010
    Label Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -9,191,000
  96. Description The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.
    Fact WeightedAverageNumberOfDilutedSharesOutstanding
    Frame CY2010
    Label Weighted Average Number of Shares Outstanding, Diluted
    Start 2010-01-01
    Taxonomy us-gaap
    Unit shares
    Val 228,568,000
  97. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.
    Fact IncomeTaxReconciliationOtherReconcilingItems
    Frame CY2010
    Label Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -56,000
  98. Description Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities.
    Fact InterestIncomeOperating
    Frame CY2010
    Label Interest Income, Operating
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 3,308,000
  99. Description Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.
    Fact RevenueFromRelatedParties
    Frame CY2010
    Label Revenue from Related Parties
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 65,996,000
  100. Description Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.
    Fact IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
    Frame CY2010
    Label Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
    Start 2010-01-01
    Taxonomy us-gaap
    Unit shares
    Val 3,374,000
  101. Description Number of equity instruments other than options outstanding, including both vested and non-vested instruments.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
    Frame CY2010Q4I
    Label Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number
    Taxonomy us-gaap
    Unit shares
    Val 40,851,365
  102. Description Number of options outstanding, including both vested and non-vested options.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
    Taxonomy us-gaap
    Unit shares
    Val 10,379,540
  103. Description Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredStateAndLocalIncomeTaxExpenseBenefit
    Frame CY2010
    Label Deferred State and Local Income Tax Expense (Benefit)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 252,000
  104. Description Amount of revenue from market data services, including, but not limited to, information about current quotes and most recent prices for a specific security.
    Fact MarketDataRevenue
    Frame CY2010
    Label Market Data Revenue
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 18,314,000
  105. Description Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.
    Fact NetCashProvidedByUsedInOperatingActivities
    Frame CY2010
    Label Net Cash Provided by (Used in) Operating Activities
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 58,912,000
  106. Description Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit.
    Fact IncomeTaxReconciliationTaxCreditsResearch
    Frame CY2010
    Label Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 126,000
  107. Description Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.
    Fact StockIssuedDuringPeriodValueNewIssues
    Frame CY2010
    Label Stock Issued During Period, Value, New Issues
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 15,160,000
  108. Description Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).
    Fact Revenues
    Frame CY2010
    Label Revenues
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 1,331,112,000
  109. Description Amount of income (loss) for proportionate share of equity method investee's income (loss).
    Fact IncomeLossFromEquityMethodInvestments
    Frame CY2010
    Label Income (Loss) from Equity Method Investments
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -6,940,000
  110. Description Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense.
    Fact OccupancyNet
    Frame CY2010
    Label Occupancy, Net
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 113,520,000
  111. Description Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact DeferredForeignIncomeTaxExpenseBenefit
    Frame CY2010
    Label Deferred Foreign Income Tax Expense (Benefit)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val -4,411,000
  112. Description The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.
    Fact DepreciationDepletionAndAmortization
    Frame CY2010
    Label Depreciation, Depletion and Amortization
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 50,180,000
  113. Description The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.
    Fact PaymentsToAcquireEquityMethodInvestments
    Frame CY2010
    Label Payments to Acquire Equity Method Investments
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 8,874,000
  114. Description Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.
    Fact CurrentStateAndLocalTaxExpenseBenefit
    Frame CY2010
    Label Current State and Local Tax Expense (Benefit)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 655,000
  115. Description The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.
    Fact IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
    Frame CY2010
    Label Income (Loss) from Continuing Operations before Income Taxes, Foreign
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 43,900,000
  116. Description Amount of increase (decrease) in operating assets classified as other.
    Fact IncreaseDecreaseInOtherOperatingAssets
    Frame CY2010
    Label Increase (Decrease) in Other Operating Assets
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 5,050,000
  117. Description Revenue from providing technology services. The services may include training, installation, engineering or consulting. Consulting services often include implementation support, software design or development, or the customization or modification of the licensed software.
    Fact TechnologyServicesRevenue
    Frame CY2010
    Label Technology Services Revenue (Deprecated 2018-01-31)
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 7,804,000
  118. Description Amount of cash inflow from exercise of option under share-based payment arrangement.
    Fact ProceedsFromStockOptionsExercised
    Frame CY2010
    Label Proceeds from Stock Options Exercised
    Start 2010-01-01
    Taxonomy us-gaap
    Unit USD
    Val 463,000
  119. Description Number of shares under non-option equity instrument agreements that were either cancelled or expired.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations
    Frame CY2010
    Label Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations
    Start 2010-01-01
    Taxonomy us-gaap
    Unit shares
    Val 950,596

Facts up to 2009-12-31

  1. Description Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.
    Fact StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
    Frame CY2009Q4I
    Label Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
    Taxonomy us-gaap
    Unit USD
    Val 334,078,000
  2. Description Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
    Frame CY2009Q4I
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
    Taxonomy us-gaap
    Unit USD/shares
    Val 12.92
  3. Description Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.
    Fact CashAndCashEquivalentsAtCarryingValue
    Frame CY2009Q4I
    Label Cash and Cash Equivalents, at Carrying Value
    Taxonomy us-gaap
    Unit USD
    Val 469,301,000
  4. Description Number of equity instruments other than options outstanding, including both vested and non-vested instruments.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
    Frame CY2009Q4I
    Label Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number
    Taxonomy us-gaap
    Unit shares
    Val 26,766,168
  5. Description Number of options outstanding, including both vested and non-vested options.
    Fact ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
    Frame CY2009Q4I
    Label Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
    Taxonomy us-gaap
    Unit shares
    Val 11,672,179

The filing refers to a past date, and does not necessarily reflect the current state. The current state is available on the following page: BGC Group Inc., New York, United States.