Partnership's Borrowings Through Consolidated CLO Vehicles (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Debt Instrument [Line Items]
Borrowing Outstanding	$ 13,351,978	$ 9,367,989
Senior Secured Notes
Debt Instrument [Line Items]
Borrowing Outstanding	11,927,078	8,250,418
Weighted Average Interest Rate	1.66%	1.96%
Weighted Average Remaining Maturity in Years	4.7	4.3
Subordinated Notes
Debt Instrument [Line Items]
Borrowing Outstanding	$ 1,424,900	$ 1,117,571
Weighted Average Remaining Maturity in Years	5.5	7.2

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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