Partnership's Borrowings Through Consolidated CLO Vehicles (Detail) (Partnership's Borrowings Through Consolidated CLO Vehicles, USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Debt Instrument [Line Items]
Borrowing Outstanding	$ 9,826,621		$ 12,967,302
Senior Secured Notes
Debt Instrument [Line Items]
Borrowing Outstanding	8,605,553		11,518,111
Weighted Average Interest Rate	1.09%		1.34%
Weighted Average Remaining Maturity in Years	4 years 1 month 6 days		4 years 7 months 6 days
Subordinated Notes
Debt Instrument [Line Items]
Borrowing Outstanding	$ 1,221,068		$ 1,449,191
Weighted Average Interest Rate		[1]		[1]
Weighted Average Remaining Maturity in Years			2 years 7 months 6 days

[1] The Subordinated Notes do not have contractual interest rates but instead receive distributions from the excess cash flows of the CLO vehicles.