Condensed Consolidated Statements of Changes in Partners' Capital - USD ($) $ in Thousands	Total	Partners' Capital	Accumulated Other Comprehensive Income (Loss)	Total	Non-Controlling Interests in Consolidated Entities	Non-Controlling Interests in Blackstone Holdings	Total Partners' Capital	Redeemable Non-Controlling Interests in Consolidated Entities	Common Units	Appropriated Partners' Capital
Beginning Balance, Units at Dec. 31, 2014									595,624,855
Net Delivery of Vested Holdings Partnership Units and Blackstone Common Units, Units									7,956,871
Conversion of Blackstone Holdings Partnership Units to Blackstone Common Units, Units									5,603,820
Ending Balance, Units at Mar. 31, 2015									609,185,546
Beginning Balance at Dec. 31, 2014		$ 6,999,830	$ (20,864)	$ 7,060,267	$ 3,415,356	$ 4,416,070	$ 14,891,693			$ 81,301
Beginning Balance at Dec. 31, 2014								$ 2,441,854
Deconsolidation of CLOs and Funds on Adoption of ASU 2015-02				(90,928)	(1,002,728)		(1,093,656)	(2,258,289)		(90,928)
Net Income (Loss)	$ 1,364,001	629,448		629,448	81,796	645,230	1,356,474	7,527
Currency Translation Adjustment			(22,178)	(22,178)	(48,530)		(70,708)
Capital Contributions					63,910		63,910	2,000
Capital Distributions		(482,249)		(482,249)	(228,800)	(488,711)	(1,199,760)	(440)
Transfer of Non-Controlling Interests in Consolidated Entities					(10,163)		(10,163)
Deferred Tax Effects Resulting from Acquisition of Ownership Interests from Non- Controlling Interest Holders		9,113		9,113			9,113
Equity-Based Compensation		130,134		130,134		122,236	252,370
Net Delivery of Vested Blackstone Holdings Partnership Units and Blackstone Common Units		(27,632)		(27,632)			(27,632)
Excess Tax Benefits Related to Equity-Based Compensation, Net		(23,834)		(23,834)			(23,834)
Change in The Blackstone Group L.P.'s Ownership Interest	68,361	68,361		68,361		(68,361)
Conversion of Blackstone Holdings Partnership Units to Blackstone Common Units		46,123		46,123		(46,123)
Ending Balance at Mar. 31, 2015		7,396,962	(43,042)	7,353,920	2,270,841	4,580,341	14,205,102
Ending Balance at Mar. 31, 2015								192,652
Adjustment to Appropriated Partners' Capital on Adoption of ASU 2014-13				9,627			9,627			$ 9,627
Beginning Balance, Units at Dec. 31, 2015									624,450,162
Net Delivery of Vested Holdings Partnership Units and Blackstone Common Units, Units									4,025,507
Conversion of Blackstone Holdings Partnership Units to Blackstone Common Units, Units									3,073,286
Ending Balance, Units at Mar. 31, 2016									631,548,955
Beginning Balance at Dec. 31, 2015	6,269,788	6,322,307	(52,519)	6,269,788	2,408,701	3,368,509	12,046,998
Beginning Balance at Dec. 31, 2015	183,459							183,459
Net Income (Loss)	314,920	150,033		150,033	40,086	131,202	321,321	(6,401)
Currency Translation Adjustment			6,455	6,455	11,157		17,612
Capital Contributions					94,418		94,418
Capital Distributions		(389,780)		(389,780)	(68,692)	(355,360)	(813,832)	(4)
Transfer of Non-Controlling Interests in Consolidated Entities					(5,312)		(5,312)
Deferred Tax Effects Resulting from Acquisition of Ownership Interests from Non- Controlling Interest Holders		(1,145)		(1,145)			(1,145)
Equity-Based Compensation		36,053		36,053		41,455	77,508
Net Delivery of Vested Blackstone Holdings Partnership Units and Blackstone Common Units		(13,262)		(13,262)			(13,262)
Excess Tax Benefits Related to Equity-Based Compensation, Net		9,720		9,720			9,720
Change in The Blackstone Group L.P.'s Ownership Interest	3,618	3,618		3,618		(3,618)
Conversion of Blackstone Holdings Partnership Units to Blackstone Common Units		18,931		18,931		(18,931)
Ending Balance at Mar. 31, 2016	6,090,411	$ 6,136,475	$ (46,064)	$ 6,090,411	$ 2,480,358	$ 3,163,257	$ 11,734,026
Ending Balance at Mar. 31, 2016	$ 177,054							$ 177,054