Condensed Consolidated Statements of Changes in Partners' Capital (USD $) In Thousands, except Share data	Total USD ($)	Partners' Capital USD ($)	Appropriated Partners' Capital USD ($)	Accumulated Other Comprehensive Income USD ($)	NonControlling Interests in Consolidated Entities USD ($)	NonControlling Interests in Blackstone Holdings USD ($)	Total Partners' Capital USD ($)	Redeemable NonControlling Interests in Consolidated Entities USD ($)	Common Units
Beginning Balance at Dec. 31, 2012		$ 4,955,649	$ 509,028	$ 2,170	$ 1,443,559	$ 2,748,356	$ 9,658,762	$ 1,556,185
Beginning Balance, Units at Dec. 31, 2012									556,354,387
Net Delivery of Vested Common Units									4,574,312
Conversion of Blackstone Holdings Partnership Units to Blackstone Common Units, Units									383,129
Net Income (Loss)	427,589	167,635			(9,452)	207,090	365,273	62,316
Allocation of Losses of Consolidated CLO Entities			(81,254)		81,254
Currency Translation Adjustment				(4,122)	(7,828)		(11,950)
Allocation of Currency Translation Adjustment of Consolidated CLO Entities			(7,828)		7,828
Capital Contributions	2,323				34,648	107	34,755	151,450
Capital Distributions		(240,498)			(66,689)	(321,017)	(628,204)	(130,874)
Transfer of Non-Controlling Interests in Consolidated Entities					(208)		(208)
Purchase of Interests from Certain Non-Controlling Interest Holders		(11)					(11)
Deferred Tax Effects Resulting from Acquisition of Ownership Interests from Non-Controlling Interest Holders		75,859					75,859
Equity-Based Compensation		126,994				125,354	252,348
Relinquished with Deconsolidation and Liquidation of Partnership			(9,776)				(9,776)	50
Net Delivery of Vested Common Units		(9,741)					(9,741)
Change in The Blackstone Group L.P.'s Ownership Interest		(9,748)				9,748
Conversion of Blackstone Holdings Partnership Units to Blackstone Common Units		1,902				(1,902)
Ending Balance at Mar. 31, 2013		5,068,041	410,170	(1,952)	1,483,112	2,767,736	9,727,107	1,639,127
Ending Balance, Units at Mar. 31, 2013									561,311,828
Beginning Balance at Dec. 31, 2013		6,002,592	300,708	3,466	2,464,047	3,656,416	12,427,229	1,950,442
Beginning Balance, Units at Dec. 31, 2013									572,592,279
Net Delivery of Vested Common Units									4,759,747
Conversion of Blackstone Holdings Partnership Units to Blackstone Common Units, Units									6,739,766
Transition and Acquisition Adjustments Relating to Consolidation of CLO Entities			8,398				8,398
Consolidation of Fund Entity					4,511		4,511	30,922
Net Income (Loss)	654,875	265,617			43,961	299,505	609,083	45,792
Allocation of Losses of Consolidated CLO Entities			(39,019)		39,019
Currency Translation Adjustment				(1,048)	(118)		(1,166)
Allocation of Currency Translation Adjustment of Consolidated CLO Entities			(118)		118
Reclassification of Currency Translation Adjustment Due to Deconsolidation of CLO Entities		(2,695)					(2,695)
Capital Contributions					147,862		147,862	282,641
Capital Distributions		(341,318)			(135,987)	(367,544)	(844,849)	(133,443)
Transfer of Non-Controlling Interests in Consolidated Entities					(212)		(212)
Purchase of Interests from Certain Non-Controlling Interest Holders		(6)					(6)
Deferred Tax Effects Resulting from Acquisition of Ownership Interests from Non-Controlling Interest Holders		12,645					12,645
Equity-Based Compensation		142,117				133,128	275,245
Relinquished with Deconsolidation and Liquidation of Partnership			(35,460)		(55)		(35,515)
Net Delivery of Vested Common Units		(19,129)					(19,129)
Excess Tax Benefits Related to Equity-Based Compensation, Net		14,006					14,006
Change in The Blackstone Group L.P.'s Ownership Interest		(10,354)				10,354
Conversion of Blackstone Holdings Partnership Units to Blackstone Common Units		45,050				(45,050)
Ending Balance at Mar. 31, 2014		$ 6,108,525	$ 234,509	$ 2,418	$ 2,563,146	$ 3,686,809	$ 12,595,407	$ 2,176,354
Ending Balance, Units at Mar. 31, 2014									584,091,792