Fee Revenue - Narrative (Details)	12 Months Ended
	Dec. 31, 2023
Revenue from Contract with Customer Benchmark | Revenue from Rights Concentration Risk | Revenue Concentration One
Management Fee Income [Line Items]
Concentration (as a percent)	24.00%
Revenue from Contract with Customer Benchmark | Revenue from Rights Concentration Risk | Revenue Concentration Two
Management Fee Income [Line Items]
Concentration (as a percent)	20.00%
Revenue from Contract with Customer Benchmark | Revenue from Rights Concentration Risk | Revenue Concentration Three
Management Fee Income [Line Items]
Concentration (as a percent)	15.00%
Private Funds | Base Management Fees | Minimum | Fee revenue
Management Fee Income [Line Items]
Management fee revenue, percent of total commitments during commitment period and thereafter invested capital (as a percent)	0.64%
Private Funds | Base Management Fees | Maximum | Fee revenue
Management Fee Income [Line Items]
Management fee revenue, percent of total commitments during commitment period and thereafter invested capital (as a percent)	1.60%
NAV Write-Downs | Base Management Fees | Minimum | Fee revenue
Management Fee Income [Line Items]
Management fee revenue, percent of total commitments during commitment period and thereafter invested capital (as a percent)	0.25%
NAV Write-Downs | Base Management Fees | Maximum | Fee revenue
Management Fee Income [Line Items]
Management fee revenue, percent of total commitments during commitment period and thereafter invested capital (as a percent)	1.10%
Credit and Co-Investment Vehicles | Base Management Fees | Minimum | Fee revenue
Management Fee Income [Line Items]
Management fee revenue, percent of total commitments during commitment period and thereafter invested capital (as a percent)	0.30%
Credit and Co-Investment Vehicles | Base Management Fees | Maximum | Fee revenue
Management Fee Income [Line Items]
Management fee revenue, percent of total commitments during commitment period and thereafter invested capital (as a percent)	1.25%
Infrabridge Vehicles | Base Management Fees | Minimum | Fee revenue
Management Fee Income [Line Items]
Management fee revenue, percent of total commitments during commitment period and thereafter invested capital (as a percent)	0.15%
Infrabridge Vehicles | Base Management Fees | Maximum | Fee revenue
Management Fee Income [Line Items]
Management fee revenue, percent of total commitments during commitment period and thereafter invested capital (as a percent)	2.00%