CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total USD ($)	Common Units	Partners' Capital USD ($)	Accumulated Other Comprehensive Income (Loss) USD ($)	Noncontrolling Interests USD ($)	Redeemable Noncontrolling Interests USD ($)
Balance at Dec. 31, 2011	$ 37,409,143		$ 1,330,887	$ (2,189)	$ 36,080,445	$ 275,507
Balance (in units) at Dec. 31, 2011		227,150,182
Increase (Decrease) in Partners' Capital
Net Income (Loss)	6,561,353		464,108		6,097,245
Net Income (Loss)	18,551					18,551
Other Comprehensive Income (Loss)-
Foreign Currency Translation (Net of Tax)	362			921	(559)
Exchange of KKR Holdings L.P. Units to KKR & Co. L.P. Common Units			138,280	(161)	(138,119)
Exchange of KKR Holdings L.P. Units to KKR & Co. L.P. Common Units (in units)	13,151,729	13,151,729
Tax Effects Resulting from Exchange of KKR Holdings L.P. Units and delivery of KKR & Co. L.P. Common Units	1,223		1,320	(97)
Net Delivery of Common Units-Equity Incentive Plan (in units)		1,105,894
Equity Based Compensation	330,037		47,679		282,358
Capital Contributions	2,276,163				2,276,163	179,767
Capital Distributions	(6,410,418)		(138,217)		(6,272,201)	(988)
Balance at Sep. 30, 2012	40,167,863		1,844,057	(1,526)	38,325,332	472,837
Balance (in units) at Sep. 30, 2012		241,407,805
Balance at Dec. 31, 2012	40,942,890		2,008,965	(4,606)	38,938,531	462,564
Balance (in units) at Dec. 31, 2012		253,363,691
Increase (Decrease) in Partners' Capital
Net Income (Loss)	4,547,606		413,313		4,134,293
Net Income (Loss)	25,992					25,992
Other Comprehensive Income (Loss)-
Foreign Currency Translation (Net of Tax)	(7,534)			(1,309)	(6,225)
Exchange of KKR Holdings L.P. Units to KKR & Co. L.P. Common Units			329,245	(764)	(328,481)
Exchange of KKR Holdings L.P. Units to KKR & Co. L.P. Common Units (in units)	27,809,258	27,809,258
Tax Effects Resulting from Exchange of KKR Holdings L.P. Units and delivery of KKR & Co. L.P. Common Units	14,415		14,161	254
Net Delivery of Common Units-Equity Incentive Plan	16,563		16,563
Net Delivery of Common Units-Equity Incentive Plan (in units)		3,878,307
Equity Based Compensation	247,183		84,581		162,602
Capital Contributions	4,615,392				4,615,392	138,063
Capital Distributions	(7,442,293)		(365,310)		(7,076,983)	(52,554)
Balance at Sep. 30, 2013	$ 42,934,222		$ 2,501,518	$ (6,425)	$ 40,439,129	$ 574,065
Balance (in units) at Sep. 30, 2013		285,051,256