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)	2,966,703		190,436		2,776,267
Net Income (Loss)	5,272					5,272
Other Comprehensive Income (Loss)-
Foreign Currency Translation (Net of Tax)	3,627			756	2,871
Exchange of KKR Holdings L.P. Units to KKR & Co. L.P. Common Units			46,269	(40)	(46,229)
Exchange of KKR Holdings L.P. Units to KKR & Co. L.P. Common Units (in units)	4,548,024	4,548,024
Deferred Tax Effects Resulting from Exchange of KKR Holdings L.P. Units to KKR & Co. L.P. Common Units	579		587	(8)
Equity Based Compensation	114,341		16,263		98,078
Capital Contributions	742,315				742,315	135,110
Capital Distributions	(1,637,024)		(72,688)		(1,564,336)	(180)
Balance at Mar. 31, 2012	39,599,684		1,511,754	(1,481)	38,089,411	415,709
Balance (in units) at Mar. 31, 2012		231,698,206
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)	2,073,563		193,439		1,880,124
Net Income (Loss)	24,623					24,623
Other Comprehensive Income (Loss)-
Foreign Currency Translation (Net of Tax)	(1,243)			127	(1,370)
Exchange of KKR Holdings L.P. Units to KKR & Co. L.P. Common Units			91,188	(173)	(91,015)
Exchange of KKR Holdings L.P. Units to KKR & Co. L.P. Common Units (in units)	7,573,311	7,573,311
Deferred Tax Effects Resulting from Exchange of KKR Holdings L.P. Units to KKR & Co. L.P. Common Units	2,039		1,997	42
Net Delivery of Common Units-Equity Incentive Plan	15,027		15,027
Net Delivery of Common Units-Equity Incentive Plan (in units)		844,301
Equity Based Compensation	81,650		27,418		54,232
Capital Contributions	715,021				715,021	34,668
Capital Distributions	(2,569,868)		(177,355)		(2,392,513)	(4,021)
Balance at Mar. 31, 2013	$ 41,259,079		$ 2,160,679	$ (4,610)	$ 39,103,010	$ 517,834
Balance (in units) at Mar. 31, 2013		261,781,303