Summary of Fair Value by Strategy Type Alongside Consolidated Funds of Hedge Funds' Remaining Unfunded Commitments and Ability to Redeem Such Investments (Detail) $ in Thousands	Dec. 31, 2019 USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 308,851
Unfunded Commitments	394
Diversified Instruments
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	221,901
Unfunded Commitments	126
Credit Driven
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	79,092	[1]
Unfunded Commitments	268	[1]
Equity
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	6,245	[2]
Commodities
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 1,613	[3]

[1] The Credit Driven category includes investments in hedge funds that invest primarily in domestic and international bonds. Investments representing 21% of the fair value of the investments in this category are in liquidation. The remaining 79% of investments in this category are redeemable as of the reporting date.

[2] The Equity category includes investments in hedge funds that invest primarily in domestic and international equity securities. Investments representing 100% of the fair value of the investments in this category are in liquidation. As of the reporting date, the investee fund manager had elected to side-pocket 70% of Blackstone’s investments in the category.

[3] The Commodities category includes investments in commodities-focused funds that primarily invest in futures and physical-based commodity driven strategies. Investments representing 100% of the fair value of the investments in this category may not be redeemed at, or within three months of, the reporting date.