Due from Affiliates and Due to Affiliates (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Related Party Transaction [Line Items]
Accrual for Potential Clawback of Previously Distributed Carried Interest	$ 1,561	$ 165,322
Primarily Interest Bearing Advances Made on Behalf of Certain Non-Controlling Interest Holders and Blackstone Employees for Investments in Blackstone Funds	151,493	155,302
Amounts Due from Portfolio Companies and Funds	307,926	259,196
Investments Redeemed in Non-Consolidated Funds of Hedge Funds	259,787	39,507
Management and Performance Fees Due from Non-Consolidated Funds	325,389	343,846
Payments Made on Behalf of Non-Consolidated Entities	133,790	150,317
Advances Made to Certain Non-Controlling Interest Holders and Blackstone Employees	12,098	6,577
Due from Affiliates, total	1,192,044	1,120,067
Due to Certain Non-Controlling Interest Holders in Connection with the Tax Receivable Agreements	1,235,168	1,218,488
Accrual for Potential Repayment of Previously Received Performance Fees	4,270	267,116
Due to Note Holders of Consolidated CLO Vehicles	123,929	191,128
Due to Certain Non-Controlling Interest Holders		201,286
Distributions Received on Behalf of Certain Non-Controlling Interest Holders and Blackstone Employees	11,293	12,506
Payable to Affiliates for Consolidated Funds	29,803	81,589
Distributions Received on Behalf of Blackstone Entities	22,815	20,295
Payments Made by Non-Consolidated Entities	9,581	10,236
Due to Affiliates, total	$ 1,436,859	$ 2,002,644