BORROWINGS - Securitization Trusts (Details) - USD ($) $ in Thousands	1 Months Ended			12 Months Ended
	Jun. 30, 2023	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Oct. 31, 2019	Nov. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Assets				$ 2,744,819	$ 2,059,912	$ 1,429,513
Liabilities				2,347,249	1,763,630
Securitization Trusts
Debt Instrument [Line Items]
Assets				206,500	272,400
Liabilities				128,800	189,200
Securitization Trusts | Secured Debt
Debt Instrument [Line Items]
Transfer amount	$ 103,900	$ 116,200	$ 103,400				$ 118,900	$ 108,600	$ 76,200
Loans			$ 103,400	128,828	189,231		118,900	108,600	75,400
Interest expense				$ 12,000	$ 21,100	$ 23,500
Percent of principal amount	20.00%	20.00%	20.00%
Securitization Trusts, Class A | Secured Debt
Debt Instrument [Line Items]
Loans	$ 84,300	$ 95,400	$ 79,700				93,500	82,900	58,100
Securitization Trusts, Class A | Secured Debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest rate, basis spread		2.97%
Securitization Trusts, Class A | Secured Debt | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Interest rate, basis spread	3.24%		1.92%
Securitization Trusts, Class B | Secured Debt
Debt Instrument [Line Items]
Loans	$ 19,600	$ 20,800	$ 23,800				$ 25,400	$ 25,700	$ 17,300
Securitization Trusts, Class B | Secured Debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest rate, basis spread		2.97%
Securitization Trusts, Class B | Secured Debt | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Interest rate, basis spread	3.24%		1.92%