COMMITMENTS AND CONTINGENCIES - Narrative (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) infrastructureDebtFund	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2022 USD ($)
COMMITMENTS AND CONTINGENCIES
Unfunded capital commitments		$ 677,900,000	$ 1,030,600,000	$ 677,900,000
Maximum exposure from guarantees		31,500,000	$ 122,300,000	31,500,000
Recognition period			4 years
Contingent liability recognized			$ 75,000,000
Management incentive program, amount accrued			5,000,000
Cash payment	$ 3,400,000
Carried interest, contingent repayment obligations		0	$ 0	0
Minimum
COMMITMENTS AND CONTINGENCIES
Lease terms			1 year
Maximum
COMMITMENTS AND CONTINGENCIES
Lease terms			13 years
Performance income
COMMITMENTS AND CONTINGENCIES
Performance income subject to potential clawback provision		128,400,000	$ 78,500,000	128,400,000
Performance income subject to potential claw back provision that are reimbursable by professionals		101,000,000	54,500,000	101,000,000
Crescent Point Capital
COMMITMENTS AND CONTINGENCIES
Commitment, maximum amount			$ 75,000,000
Business combination, percentage			33.00%
Business combination equity awards percentage			67.00%
Infrastructure Debt Acquisition
COMMITMENTS AND CONTINGENCIES
Commitment, maximum amount			$ 15,000,000		$ 48,500,000
Business combination, percentage			15.00%
Business combination equity awards percentage			85.00%
Contingent liability recognized			$ 13,600,000	13,500,000
Management incentive program, amount accrued		$ 2,200,000	4,400,000	2,200,000
Compensation expense			$ 2,300,000	2,200,000
Infrastructure Debt Acquisition | Revenue Target
COMMITMENTS AND CONTINGENCIES
Number of infrastructure debt funds revenue targets achieved | infrastructureDebtFund		1
Contingent liability recognized				21,800,000
Management incentive program, amount accrued		$ 7,000,000		7,000,000
Compensation expense				$ 7,000,000