COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
COMMITMENTS AND CONTINGENCIES
Unfunded capital commitments	$ 632,400,000	$ 387,400,000
Performance Income
Carried interest, contingent repayment obligations		0
Performance Income
Performance Income
Performance income subject to potential clawback provision	271,900,000	233,400,000
Performance income subject to potential claw back provision that are reimbursable by professionals	$ 208,400,000	$ 175,100,000