v2.4.0.6
Summary of Financial Instruments for Which Fair Value Option Has Been Elected (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets of Consolidated CLO Vehicles: Corporate Loans $ 11,427,207 [1] $ 7,895,148 [1]
Assets of Consolidated CLO Vehicles: Corporate Bonds 228,741 [1] 153,653 [1]
Assets of Consolidated CLO Vehicles: Other 24,114 [1] 53,881 [1]
Total Assets 11,830,719 8,140,523
Liabilities of Consolidated CLO Vehicles: Senior Secured Notes 10,534,253 [1] 7,449,766 [1]
Liabilities of Consolidated CLO Vehicles: Subordinated Notes 701,648 [1] 630,236 [1]
Total Liabilities 11,235,901 8,080,002
Loans And Receivables
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans and Receivables 104,207 8,555
Corporate Loans
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets of Consolidated CLO Vehicles: Corporate Loans 11,427,207 7,901,020
Corporate Bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets of Consolidated CLO Vehicles: Corporate Bonds 228,741 153,653
Other
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets of Consolidated CLO Vehicles: Other 70,564 77,295
Senior Secured Notes
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Liabilities of Consolidated CLO Vehicles: Senior Secured Notes 10,534,253 7,449,766
Subordinated Notes
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Liabilities of Consolidated CLO Vehicles: Subordinated Notes $ 701,648 $ 630,236
[1] Pursuant to GAAP consolidation guidance, the Partnership is required to consolidate all VIEs in which it has been identified as the primary beneficiary, including its investments in CLO vehicles and other funds in which a consolidated entity of the Partnership, as the general partner of the fund, is presumed to have control. While the Partnership is required to consolidate certain funds, including CLO vehicles, for GAAP purposes, the Partnership has no ability to utilize the assets of these funds and there is no recourse to the Partnership for their liabilities since these are client assets and liabilities.