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Carrying Value and Fair Value of Blackstone Issued Notes (Parenthetical) (Detail) $ in Millions | 3 Months Ended
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Mar. 31, 2024 USD ($)
Debt Instrument [Line Items] |  |
Fair Value of assets secured for secured borrowings | $ 48.5 |
Liabilities Of Consolidated Clo Vehicles Notes Payable |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 8.25% |
Debt instrument, maturity date, description | June 2025 to January 2037 |
2.000% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | May 19, 2025 | [1]
2.000% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 2.00% | [1]
1.000% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Oct. 05, 2026 | [1]
1.000% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 1.00% | [1]
3.150% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Oct. 02, 2027 | [1]
3.150% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 3.15% | [1]
5.900% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Nov. 03, 2027 | [1]
5.900% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 5.90% | [1]
1.625% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Aug. 05, 2028 | [1]
1.625% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 1.625% | [1]
1.500% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Apr. 10, 2029 | [1]
1.500% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 1.50% | [1]
2.500% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Jan. 10, 2030 | [1]
2.500% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 2.50% | [1]
1.600% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Mar. 30, 2031 | [1]
1.600% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 1.60% | [1]
2.000% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Jan. 30, 2032 | [1]
2.000% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 2.00% | [1]
2.550% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Mar. 30, 2032 | [1]
2.550% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 2.55% | [1]
6.200% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Apr. 22, 2033 | [1]
6.200% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 6.20% | [1]
3.500% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Jun. 01, 2034 | [1]
3.500% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 3.50% | [1]
6.250% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Aug. 15, 2042 | [1]
6.250% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 6.25% | [1]
5.000% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Jun. 15, 2044 | [1]
5.000% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 5.00% | [1]
4.450% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Jul. 15, 2045 | [1]
4.450% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 4.45% | [1]
4.000% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Oct. 02, 2047 | [1]
4.000% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 4.00% | [1]
3.500% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Sep. 10, 2049 | [1]
3.500% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 3.50% | [1]
2.800% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Sep. 30, 2050 | [1]
2.800% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 2.80% | [1]
2.850% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Aug. 05, 2051 | [1]
2.850% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 2.85% | [1]
3.200% Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, maturity date | Jan. 30, 2052 | [1]
3.200% Notes | Senior Secured Notes |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 3.20% | [1]
Secured Borrowings One |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 7.64% |
Debt instrument, maturity date | Oct. 27, 2033 | [2]
Secured Borrowings Two |  |
Debt Instrument [Line Items] |  |
Debt instrument, interest rate | 7.64% |
Debt instrument, maturity date | Jan. 29, 2035 | [2]
[1] | Fair value is determined by broker quote and these notes would be classified as Level II within the fair value hierarchy.
[2] | The Secured Borrowing, Due 10/27/2033 has an interest rate of 7.64% and the Secured Borrowing, Due 1/29/2035 has an interest rate of 7.64%. Principal on the Secured Borrowings will be paid over the term with repayment amounts dependent on the performance of the underlying assets securing each borrowing. Repayment amounts from the underlying assets are restricted to solely satisfy the Secured Borrowings obligations. As of March 31, 2024, the fair value of the assets securing both Secured Borrowings equaled $48.5 million.

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