XML 121 R69.htm IDEA: XBRL DOCUMENT v2.4.1.9
Investments of Operating Entities and Consolidated Funds - Securities Lending and Borrowing Transactions (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Securities borrowed $ 676,100us-gaap_SecuritiesBorrowedGross $ 927,773us-gaap_SecuritiesBorrowedGross
Securities Borrowed, Amount Offset Against Collateral 0us-gaap_SecuritiesBorrowedAmountOffsetAgainstCollateral [1] 0us-gaap_SecuritiesBorrowedAmountOffsetAgainstCollateral [1]
Securities Borrowed 676,100us-gaap_SecuritiesBorrowed 927,773us-gaap_SecuritiesBorrowed
Securities Borrowed, Not Offset, Policy Election Deduction (15,655)us-gaap_SecuritiesBorrowedNotOffsetPolicyElectionDeduction (34,973)us-gaap_SecuritiesBorrowedNotOffsetPolicyElectionDeduction
Financial Instruments, Owned and Pledged as Collateral, at Fair Value 0us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue 0us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue
Securities Borrowed, Not Offset against Collateral 0us-gaap_SecuritiesBorrowedFairValueOfCollateral [2] 0us-gaap_SecuritiesBorrowedFairValueOfCollateral [2]
Securities Borrowed, net 0cown_SecuritiesBorrowedNotOffsetagainstCollateral 0cown_SecuritiesBorrowedNotOffsetagainstCollateral
Securities loaned 682,493us-gaap_SecuritiesLoanedGross 918,577us-gaap_SecuritiesLoanedGross
Securities Loaned, Amount Offset Against Collateral 0us-gaap_SecuritiesLoanedAmountOffsetAgainstCollateral [1] 0us-gaap_SecuritiesLoanedAmountOffsetAgainstCollateral [1]
Securities Loaned 682,493us-gaap_SecuritiesLoaned 918,577us-gaap_SecuritiesLoaned
Securities Loaned, Not Offset, Policy Election Deduction (2,441)us-gaap_SecuritiesLoanedNotOffsetPolicyElectionDeduction (36,877)us-gaap_SecuritiesLoanedNotOffsetPolicyElectionDeduction
Securities Loaned, Fair Value of Collateral 0us-gaap_SecuritiesLoanedFairValueOfCollateral [2] 0us-gaap_SecuritiesLoanedFairValueOfCollateral [2]
Securities Loaned, Not Offset Against Collateral 0cown_SecuritiesLoanedNotOffsetAgainstCollateral 0cown_SecuritiesLoanedNotOffsetAgainstCollateral
securities borrowed [Member]    
Financial Instruments, Owned and Pledged as Collateral, at Fair Value (660,445)us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue
/ us-gaap_InformationByFinancialStatementLineItemAxis
= cown_SecuritiesborrowedMember
(892,800)us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue
/ us-gaap_InformationByFinancialStatementLineItemAxis
= cown_SecuritiesborrowedMember
securities loaned [Member]    
Financial Instruments, Owned and Pledged as Collateral, at Fair Value $ (680,052)us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue
/ us-gaap_InformationByFinancialStatementLineItemAxis
= cown_SecuritiesloanedMember
$ (881,700)us-gaap_FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue
/ us-gaap_InformationByFinancialStatementLineItemAxis
= cown_SecuritiesloanedMember
[1] Includes financial instruments subject to enforceable master netting provisions that are permitted to be offset to the extent an event of default has occurred.
[2] Includes the amount of cash collateral held/posted.