Reconciliation of Realized and Net Change in Unrealized Gains (Losses) to Other Income (Loss) - Net Gains (Losses) from Fund Investment Activities in Condensed Consolidated Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Gain (Loss) on Securities [Line Items]
Realized and Net Change in Unrealized Gains from Consolidated Blackstone Funds	$ (495,677)	$ 3,418,501
Interest and Dividend Revenue Attributable to Consolidated Blackstone Funds	90,485	54,485
Other Income – Net Gains from Fund Investment Activities	71,064	50,876
Consolidated Blackstone Funds
Gain (Loss) on Securities [Line Items]
Realized Gains	17,155	17,688
Net Change in Unrealized Gains (Losses)	(17,154)	27,841
Realized and Net Change in Unrealized Gains from Consolidated Blackstone Funds	1	45,529
Interest and Dividend Revenue Attributable to Consolidated Blackstone Funds	71,063	5,347
Other Income – Net Gains from Fund Investment Activities	$ 71,064	$ 50,876