v3.26.1
Summary of Changes in Financial Assets and Liabilities Measured at Fair Value for Which Level III Inputs Were Used (Detail) - Level 3 - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Balance, Beginning of Period $ 4,916,372 $ 4,512,659 $ 4,639,444 $ 3,898,720
Transfer Out Due to Deconsolidation     (317,078) (155,572)
Transfer Into Level III [1] 2,618 84 3,387 1,446
Transfer Out of Level III [1] (445,826) (281) (458,534) (2,039)
Purchases 482,108 997,079 1,516,075 2,300,321
Sales (470,783) (443,852) (875,689) (1,123,228)
Issuances   765   3,823
Settlements [2] (12,337) (15,115) (19,474) (22,995)
Changes in Gains (Losses) Included in Earnings 69,472 237,800 53,493 388,663
Balance, End of Period 4,541,624 5,289,139 4,541,624 5,289,139
Changes in Unrealized Gains (Losses) Included in Earnings Related to Financial Assets Still Held at the Reporting Date 70,485 99,278 58,729 174,620
Balance, Beginning of Period 1,151,709 1,027,605 1,124,744 939,088
Changes in Losses (Gains) Included in Earnings 2,103 51,957 29,068 140,474
Balance, End of Period 1,153,812 1,079,562 1,153,812 1,079,562
Changes in Unrealized Losses (Gains) Included in Earnings Related to Financial Liabilities Still Held at the Reporting Date 2,103 51,957 29,068 140,474
Freestanding Derivatives        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Balance, Beginning of Period 1,149,255 1,026,297 1,124,147 938,216
Changes in Losses (Gains) Included in Earnings 2,806 52,469 27,914 140,550
Balance, End of Period 1,152,061 1,078,766 1,152,061 1,078,766
Changes in Unrealized Losses (Gains) Included in Earnings Related to Financial Liabilities Still Held at the Reporting Date 2,806 52,469 27,914 140,550
Other Liabilities        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Balance, Beginning of Period 2,454 1,308 597 872
Changes in Losses (Gains) Included in Earnings (703) (512) 1,154 (76)
Balance, End of Period 1,751 796 1,751 796
Changes in Unrealized Losses (Gains) Included in Earnings Related to Financial Liabilities Still Held at the Reporting Date (703) (512) 1,154 (76)
Other Investments        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Balance, Beginning of Period [3] 582,207 145,231 310,196 624,412
Transfer Out of Level III [1],[3] (408,745)   (419,485)  
Purchases [3] 4,574 184,242 415,296 198,275
Sales [3] (10,422) (62,956) (126,714) (566,432)
Settlements [2],[3] 1,141 (11,430) 18 (11,597)
Changes in Gains (Losses) Included in Earnings [3] (7,333) 14,432 (17,889) 24,861
Balance, End of Period [3] 161,422 269,519 161,422 269,519
Changes in Unrealized Gains (Losses) Included in Earnings Related to Financial Assets Still Held at the Reporting Date [3] (7,618) 7,763 (19,865) 13,220
Loans and Receivables        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Balance, Beginning of Period 425,981 115,055 205,158 100,866
Purchases 377,990 396,922 760,523 479,236
Sales (407,062) (245,034) (566,825) (312,379)
Issuances   765   3,823
Settlements [2] (13,478) (3,685) (19,492) (11,398)
Changes in Gains (Losses) Included in Earnings 11,330 4,000 15,397 7,875
Balance, End of Period 394,761 268,023 394,761 268,023
Changes in Unrealized Gains (Losses) Included in Earnings Related to Financial Assets Still Held at the Reporting Date (1,977) (629) (3,238) (415)
Consolidated Blackstone Funds        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Balance, Beginning of Period 3,908,184 4,252,373 4,124,090 3,173,442
Transfer Out Due to Deconsolidation     (317,078) (155,572)
Transfer Into Level III [1] 2,618 84 3,387 1,446
Transfer Out of Level III [1] (37,081) (281) (39,049) (2,039)
Purchases 99,544 415,915 340,256 1,622,810
Sales (53,299) (135,862) (182,150) (244,417)
Changes in Gains (Losses) Included in Earnings 65,475 219,368 55,985 355,927
Balance, End of Period 3,985,441 4,751,597 3,985,441 4,751,597
Changes in Unrealized Gains (Losses) Included in Earnings Related to Financial Assets Still Held at the Reporting Date $ 80,080 $ 92,144 $ 81,832 $ 161,815
[1] Transfers in and out of Level III financial assets and liabilities were due to changes in the observability of inputs used in the valuation of such assets and liabilities.
[2] For Freestanding Derivatives included within Other Investments, Settlements includes all ongoing contractual cash payments made or received over the life of the instrument.
[3] Represents freestanding derivatives, corporate treasury investments and Other Investments.