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Summary of Fair Value by Strategy Type Alongside Consolidated Funds of Hedge Funds' Remaining Unfunded Commitments and Ability to Redeem Such Investments (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2022
Diversified Instruments |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
Percentage of investments unable to be redeemed at, or within 3 months of reporting date | 100.00%
Credit Driven |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
Percentage of investments unable to be redeemed at, or within 3 months of reporting date | 82.00%
Percentage of investments redeemable as of reporting date | 18.00%
Equity |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
Percentage of investments unable to be redeemed at, or within 3 months of reporting date | 23.00%
Percentage of investments redeemable as of reporting date | 76.00%
Investee funds categorized as non redeemable, percentage | 1.00%
Commodities |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
Percentage of investments unable to be redeemed at, or within 3 months of reporting date | 100.00%
Real Estate |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
Percentage of investments redeemable as of reporting date | 100.00%

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