XML 85 R63.htm IDEA: XBRL DOCUMENT v3.22.4

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
	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%

X

- Definition

Percentage of investment categorized as irredeemable.

+ References

No definition available.

+ Details

Name:	bx_PercentageOfInvestmentCategorizedAsIrredeemable
Namespace Prefix:	bx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage Of Investments Redeemable As Of Reporting Date

+ References

No definition available.

+ Details

Name:	bx_PercentageOfInvestmentsRedeemableAsOfReportingDate
Namespace Prefix:	bx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of the total value of investments that cannot be redeemed because of a redemption restriction as of the statement of financial position date.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareRedemptionRestrictionPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_InvestmentTypeAxis=bx_DiversifiedInstrumentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=bx_CreditDrivenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_HedgeFundsEquityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_CommoditiesInvestmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_RealEstateFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: