DEBT - Schedule of Outstanding Balances and Total Commitments under the Financing Agreements (Details) - USD ($)	3 Months Ended
	Mar. 31, 2026	Feb. 28, 2026	Jan. 31, 2026	Dec. 31, 2025
Debt Instrument [Line Items]
Outstanding Balance	$ 1,272,096,000			$ 948,176,000
Total Commitment	1,540,000,000			1,240,000,000
Secured term loan
Debt Instrument [Line Items]
Outstanding Balance	90,000,000			90,000,000
Total Commitment	90,000,000			90,000,000
Equity interests pledged to the Secured Term Loan	446,800,000			478,300,000
Secured Funding Agreements
Debt Instrument [Line Items]
Outstanding Balance	1,182,096,000			858,176,000
Total Commitment	1,450,000,000			1,150,000,000
Wells Fargo Facility | Revolving Credit Facility, Optional Commitment Amount
Debt Instrument [Line Items]
Outstanding Balance	848,600,000			657,100,000
Wells Fargo Facility | Secured Funding Agreements
Debt Instrument [Line Items]
Outstanding Balance	567,904,000			438,911,000
Total Commitment	600,000,000			600,000,000
Citibank Facility | Revolving Credit Facility, Optional Commitment Amount
Debt Instrument [Line Items]
Outstanding Balance	547,900,000			420,500,000
Total Commitment	425,000,000.0			325,000,000.0
Non-utilization fee	50,000,000.0
Citibank Facility | Secured Funding Agreements
Debt Instrument [Line Items]
Outstanding Balance	389,562,000			269,265,000
Total Commitment	425,000,000			325,000,000
CNB Facility | Revolving Credit Facility, Optional Commitment Amount
Debt Instrument [Line Items]
Total Commitment	75,000,000.0
CNB Facility | Secured Funding Agreements
Debt Instrument [Line Items]
Outstanding Balance	0			0
Total Commitment	75,000,000			75,000,000
Morgan Stanley Facility | Revolving Credit Facility, Optional Commitment Amount
Debt Instrument [Line Items]
Outstanding Balance	286,400,000		$ 100,000,000.0	308,500,000
Total Commitment	400,000,000.0		250,000,000.0	150,000,000.0
Morgan Stanley Facility | Revolving Master Repurchase Facility
Debt Instrument [Line Items]
Total Commitment	350,000,000.0	$ 250,000,000.0
Morgan Stanley Facility | Revolving Credit Facility, Maximum Commitment Amount Increased
Debt Instrument [Line Items]
Total Commitment			$ 400,000,000.0
Morgan Stanley Facility | Secured Funding Agreements
Debt Instrument [Line Items]
Outstanding Balance	224,630,000			150,000,000
Total Commitment	$ 350,000,000			$ 150,000,000