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Summary of Aggregate Notional Amount and Fair Value of Derivative Financial Instruments (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Derivative Assets, Notional | $ 2,306,770 | $ 852,465
Derivative Liabilities, Notional | 1,822,967 | 1,366,166
Derivative Assets, Fair Value | 277,603 | 146,061
Derivative Liabilities, Fair Value | 137,047 | 147,808
Freestanding Derivatives |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets, Notional | 931,752 | 24,165
Derivative Liabilities, Notional | 5,133 | 91,165
Derivative Assets, Fair Value | 74,926 | 660
Derivative Liabilities, Fair Value | 284 | 1,933
Freestanding Derivatives | Blackstone |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets, Notional | 1,375,018 | 828,300
Derivative Liabilities, Notional | 1,817,834 | 1,275,001
Derivative Assets, Fair Value | 202,677 | 145,401
Derivative Liabilities, Fair Value | 136,763 | 145,875
Freestanding Derivatives | Blackstone | Credit Default Swap |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets, Notional | 2,007 | 2,007
Derivative Liabilities, Notional | 8,768 | 9,916
Derivative Assets, Fair Value | 384 | 194
Derivative Liabilities, Fair Value | 1,309 | 1,055
Freestanding Derivatives | Blackstone | Total Return Swaps |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets, Notional | 42,233 |
Derivative Assets, Fair Value | 6,210 |
Freestanding Derivatives | Consolidated Blackstone Funds | Credit Default Swap |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets, Notional |  | 3,401
Derivative Liabilities, Notional |  | 22,865
Derivative Assets, Fair Value |  | 321
Derivative Liabilities, Fair Value |  | 799
Freestanding Derivatives | Foreign Currency Contracts | Blackstone |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets, Notional | 541,238 | 217,161
Derivative Liabilities, Notional | 190,774 | 572,643
Derivative Assets, Fair Value | 8,040 | 1,858
Derivative Liabilities, Fair Value | 3,542 | 6,143
Freestanding Derivatives | Foreign Currency Contracts | Consolidated Blackstone Funds |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets, Notional |  | 20,764
Derivative Liabilities, Notional | 5,133 | 54,300
Derivative Assets, Fair Value |  | 339
Derivative Liabilities, Fair Value | 284 | 370
Freestanding Derivatives | Interest Rate Contracts | Blackstone |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets, Notional | 789,540 | 609,132
Derivative Liabilities, Notional | 621,700 | 692,442
Derivative Assets, Fair Value | 188,043 | 143,349
Derivative Liabilities, Fair Value | 83,331 | 138,677
Freestanding Derivatives | Interest Rate Contracts | Consolidated Blackstone Funds |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Assets, Notional | 931,752 |
Derivative Liabilities, Notional |  | 14,000
Derivative Assets, Fair Value | 74,926 |
Derivative Liabilities, Fair Value |  | $ 764
Freestanding Derivatives | Equity Options | Blackstone |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Liabilities, Notional | 996,592 |
Derivative Liabilities, Fair Value | $ 48,581 |

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