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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023 | Jan. 01, 2023
Schedule Of Commitments And Contingencies [Line Items] |  |  |
General partner capital funding | $ 4,700.0 |  |
Total investments at risk in respect of guarantees extended | $ 32.0 |  |
Contingent obligations currently anticipated to expire end | 2032 |  |
Provision for cash clawback | $ 1,000.0 |  |
Contingent Obligations (Clawback) | 6,500.0 |  |
Blackstone Real Estate Investment Trust or BREIT |  |  |
Schedule Of Commitments And Contingencies [Line Items] |  |  |
Percentage Of Incremental Cash Payment In Excess Of Target Return |  | 5.00% |
Security Owned and Pledged as Collateral, Associated Liabilities, Fair Value | 646.0 |  |
Investments Pledged fair value | 1,100.0 | $ 1,100.0 |
Common stock, value, subscriptions |  |  | $ 4,500.0
Blackstone Real Estate Investment Trust or BREIT | University of California |  |  |
Schedule Of Commitments And Contingencies [Line Items] |  |  |
Percentage of targeted annualized net return |  | 11.25% |
Cost of the investment |  | $ 4,500.0 |
Blackstone Holdings |  |  |
Schedule Of Commitments And Contingencies [Line Items] |  |  |
Loans held By employees for investment guaranteed | 76.0 |  |
Contingent Obligations (Clawback) | 6,100.0 |  |
Consolidated Blackstone Funds |  |  |
Schedule Of Commitments And Contingencies [Line Items] |  |  |
Funds signed investment commitments | 324.2 |  |
Consolidated Blackstone Funds | Portfolio Company Acquisition |  |  |
Schedule Of Commitments And Contingencies [Line Items] |  |  |
Signed investment commitments for portfolio company acquisitions in process of closing | $ 206.5 |  |

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