Segment Reporting - Additional Financial Data for Apollo's Reportable Segments (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues:
Advisory and transaction fees from affiliates, net	$ 116,065,000	$ 47,419,000
Management fees from affiliates	209,791,000	150,447,000
Carried interest income from affiliates:
Total Revenues	491,400,000	1,309,073,000
Compensation and benefits	243,467,000	542,302,000
Other Income	17,531,000	1,298,000
Non-Controlling Interests	(387,475,000)	(551,087,000)
Private Equity Funds
Revenues:
Advisory and transaction fees from affiliates, net	37,636,000	24,617,000
Management fees from affiliates	79,421,000	66,272,000
Carried interest income from affiliates:
Unrealized gains	(293,589,000)	697,614,000
Realized gains	396,840,000	293,379,000
Total Revenues	220,308,000	1,081,882,000
Compensation and benefits	112,813,000	423,568,000
Other expenses	18,671,000	21,967,000
Total Expenses	131,484,000	445,535,000
Other Income	22,093,000	24,183,000
Economic Net Income (Loss)	110,917,000	660,530,000
Private Equity Funds | Management
Revenues:
Advisory and transaction fees from affiliates, net	37,636,000	24,617,000
Management fees from affiliates	79,421,000	66,272,000
Carried interest income from affiliates:
Total Revenues	117,057,000	90,889,000
Compensation and benefits	46,718,000	35,747,000
Other expenses	18,671,000	21,967,000
Total Expenses	65,389,000	57,714,000
Other Income	1,694,000	1,632,000
Economic Net Income (Loss)	53,362,000	34,807,000
Private Equity Funds | Incentive
Carried interest income from affiliates:
Unrealized gains	(293,589,000)	697,614,000
Realized gains	396,840,000	293,379,000
Total Revenues	103,251,000	990,993,000
Compensation and benefits	66,095,000	387,821,000
Total Expenses	66,095,000	387,821,000
Other Income	20,399,000	22,551,000
Economic Net Income (Loss)	57,555,000	625,723,000
Credit
Revenues:
Advisory and transaction fees from affiliates, net	77,480,000	21,677,000
Management fees from affiliates	131,629,000	84,364,000
Carried interest income from affiliates:
Unrealized gains	(7,898,000)	73,247,000
Realized gains	74,250,000	60,528,000
Total Revenues	275,461,000	239,816,000
Compensation and benefits	117,461,000	80,699,000
Other expenses	36,415,000	38,323,000
Total Expenses	153,876,000	119,022,000
Other Income	43,537,000	15,417,000
Non-Controlling Interests	(3,256,000)	(3,464,000)
Economic Net Income (Loss)	161,866,000	132,747,000
Credit | Management
Revenues:
Advisory and transaction fees from affiliates, net	77,480,000	21,677,000
Management fees from affiliates	131,629,000	84,364,000
Carried interest income from affiliates:
Realized gains	8,464,000	9,051,000
Total Revenues	217,573,000	115,092,000
Compensation and benefits	78,995,000	45,356,000
Other expenses	36,415,000	38,323,000
Total Expenses	115,410,000	83,679,000
Other Income	4,335,000	4,455,000
Non-Controlling Interests	(3,256,000)	(3,464,000)
Economic Net Income (Loss)	103,242,000	32,404,000
Credit | Incentive
Carried interest income from affiliates:
Unrealized gains	(7,898,000)	73,247,000
Realized gains	65,786,000	51,477,000
Total Revenues	57,888,000	124,724,000
Compensation and benefits	38,466,000	35,343,000
Total Expenses	38,466,000	35,343,000
Other Income	39,202,000	10,962,000
Economic Net Income (Loss)	58,624,000	100,343,000
Real Estate
Revenues:
Advisory and transaction fees from affiliates, net	949,000	1,125,000
Management fees from affiliates	12,780,000	13,591,000
Carried interest income from affiliates:
Unrealized gains	(344,000)	598,000
Realized gains	0	354,000
Total Revenues	13,385,000	15,668,000
Compensation and benefits	12,353,000	10,105,000
Other expenses	5,728,000	7,376,000
Total Expenses	18,081,000	17,481,000
Other Income	1,164,000	1,014,000
Economic Net Income (Loss)	(3,532,000)	(799,000)
Real Estate | Management
Revenues:
Advisory and transaction fees from affiliates, net	949,000	1,125,000
Management fees from affiliates	12,780,000	13,591,000
Carried interest income from affiliates:
Total Revenues	13,729,000	14,716,000
Compensation and benefits	12,955,000	9,649,000
Other expenses	5,728,000	7,376,000
Total Expenses	18,683,000	17,025,000
Other Income	417,000	1,138,000
Economic Net Income (Loss)	(4,537,000)	(1,171,000)
Real Estate | Incentive
Carried interest income from affiliates:
Unrealized gains	(344,000)	598,000
Realized gains	0	354,000
Total Revenues	(344,000)	952,000
Compensation and benefits	(602,000)	456,000
Total Expenses	(602,000)	456,000
Other Income	747,000	(124,000)
Economic Net Income (Loss)	1,005,000	372,000
Parent Company Special Opportunities Managed Accounts [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
General Partner Obligation To Return Previously Distributed Carried Interest Income Or Fees		$ 19,300,000