SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Redeemable Noncontrolling Interests
Expiration period of redeemable noncontrolling interests, low end of range			1 year
Expiration period of redeemable noncontrolling interests, high end of range			3 years
Noncontrolling Interest in Consolidation Entities
Percentage of carried interest received by general partners			1.00%
Percentage of other profits (losses) received by general partners			1.00%
Calculation of noncontrolling Interests held by KKR Holdings
Equity based compensation			$ 247,183	$ 330,037
Capital contributions			4,615,392	2,276,163
Capital distributions			(7,442,293)	(6,410,418)
Calculation of net income (loss) attributable to noncontrolling interests held by KKR Holdings
Net income (loss)	2,198,154	2,102,786	4,573,598	6,579,904
Less: Net income (loss) attributable to Redeemable Noncontrolling Interests	9,169	9,994	25,992	18,551
Less: Net income (loss) attributable to Noncontrolling Interests in consolidated entities	1,984,245	1,965,381	4,134,293	6,097,245
Fees
Transaction Fees	105,387	74,168	202,107	161,290
Management Fees	45,787	21,070	130,402	61,841
Monitoring Fees	43,155	38,752	119,571	100,946
Consulting and Other Fees	25,261	10,396	50,873	35,249
Incentive fees	438	17,768	34,691	31,495
Total fees	220,028	162,154	537,644	390,821
Noncontrolling Interests held by KKR Holdings
Calculation of noncontrolling Interests held by KKR Holdings
Balance at the beginning of the period	4,699,114	4,795,697	4,981,864	4,342,157
Net income (loss) attributable to noncontrolling interests held by KKR Holdings	300,169	249,460	662,387	946,484
Other comprehensive income (loss), net of tax	(96)	3,396	(4,846)	(797)
Impact of the exchange of KKR Holdings units to KKR & Co. L.P. common units	(84,838)	(31,203)	(328,481)	(138,119)
Equity based compensation	53,988	104,792	162,602	282,358
Capital contributions	600	437	1,399	1,658
Capital distributions	(172,719)	(78,106)	(678,707)	(389,268)
Balance at the end of the period	4,796,218	5,044,473	4,796,218	5,044,473
Calculation of net income (loss) attributable to noncontrolling interests held by KKR Holdings
Net income (loss)	2,198,154	2,102,786	4,573,598	6,579,904
Less: Net income (loss) attributable to Redeemable Noncontrolling Interests	9,169	9,994	25,992	18,551
Less: Net income (loss) attributable to Noncontrolling Interests in consolidated entities	1,684,076	1,715,921	3,471,906	5,150,761
Plus: Income taxes attributable to KKR Management Holdings Corp.	3,020	7,070	12,894	28,187
Net income (loss) attributable to KKR & Co. L.P. and KKR Holdings	507,929	383,941	1,088,594	1,438,779
Net income (loss) attributable to noncontrolling interests held by KKR Holdings	$ 300,169	$ 249,460	$ 662,387	$ 946,484