Related Party Transactions and Interests in Consolidated Entities - Net Income Attributable to Non-Controlling Interests (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Related Party Transaction [Line Items]
Net income attributable to Non-Controlling Interests	$ (89,433)	$ (1,875,863)	$ (640,520)	$ (2,208,961)
Net income attributable to Non-Controlling Interests	(89,433)	(1,875,863)	(640,520)	(2,208,961)
Other Comprehensive Income attributable to Non-Controlling Interests		(801)		(2,010)
Comprehensive (Income) Loss attributable to Non-Controlling Interests	(129,676)	86,283	(642,521)	(278,318)
AAA [Member]
Related Party Transaction [Line Items]
Net income attributable to Non-Controlling Interests	(6,531)	17,721	(52,213)	(132,441)
Interest in management companies and co-investment vehicle [Member]
Related Party Transaction [Line Items]
Net income attributable to Non-Controlling Interests	(4,309)	(2,366)	(8,145)	(2,200)
Other consolidated entities [Member]
Related Party Transaction [Line Items]
Net income attributable to Non-Controlling Interests	7,647	6,892	29,566	6,892
Consolidated entities [Member]
Related Party Transaction [Line Items]
Net income attributable to Non-Controlling Interests	(3,193)	22,247	(30,792)	(127,749)
Appropriated Partners' Capital [Member]
Related Party Transaction [Line Items]
Net income attributable to Non-Controlling Interests	40,243	(1,962,947)	2,001	(1,932,653)
Non-Controlling Interests in Apollo Operating Group [Member]
Related Party Transaction [Line Items]
Net income attributable to Non-Controlling Interests	$ (126,483)	$ 64,837	$ (611,729)	$ (148,559)