VARIABLE INTEREST ENTITIES - Schedule of Non-Consolidated VIEs with Variable Interest (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
Net assets of unconsolidated VIEs in which the Company has a variable interest	$ 12,486,344	$ 12,782,124
Maximum risk of loss as a result of the Company’s involvement with unconsolidated VIEs:
Unearned income and fees	30,284	37,468
Income and fees receivable	14,717	43,250
Investments	546,490	533,026
Unfunded commitments	186,109	207,575
Other commitments	24,364	0
Maximum Exposure to Loss	801,964	821,319
Employees and Executive Managing Directors
Maximum risk of loss as a result of the Company’s involvement with unconsolidated VIEs:
Unfunded commitments	$ 111,300	$ 97,500