FAIR VALUE MEASUREMENTS - Fair Value of Debt (Details) $ in Thousands	Dec. 31, 2025 USD ($) $ / shares	Sep. 22, 2025	Dec. 31, 2024 USD ($) $ / shares	Sep. 16, 2024	May 30, 2024	Aug. 31, 2023	Jan. 31, 2021
Debt Instrument [Line Items]
Weighted Avg Interest Rate	7.53%		7.22%
Borrowings	$ 827,998		$ 720,367
Level 2
Debt Instrument [Line Items]
Borrowings	283,999		306,549
Level 3
Debt Instrument [Line Items]
Borrowings	$ 543,999		$ 413,818
2026 Notes | Medium-term Notes
Debt Instrument [Line Items]
Weighted Avg Interest Rate	5.50%		5.50%				5.50%
Borrowings	$ 95,722		$ 115,966
2026 Notes | Medium-term Notes | Measurement Input, Share Price
Debt Instrument [Line Items]
Closing price (in dollars per share) | $ / shares	25.19		25.21
2028 Notes (8.00%) | Medium-term Notes
Debt Instrument [Line Items]
Weighted Avg Interest Rate	8.00%		8.00%			8.00%
Borrowings	$ 40,320		$ 40,448
2028 Notes (8.00%) | Medium-term Notes | Measurement Input, Share Price
Debt Instrument [Line Items]
Closing price (in dollars per share) | $ / shares	25.20		25.28
2029 8.50% Notes | Medium-term Notes
Debt Instrument [Line Items]
Weighted Avg Interest Rate	8.50%	8.50%	8.50%		8.50%
Borrowings	$ 72,267		$ 72,795
2029 8.50% Notes | Medium-term Notes | Measurement Input, Share Price
Debt Instrument [Line Items]
Closing price (in dollars per share) | $ / shares	25.16		25.32
2029 8.625% Notes | Medium-term Notes
Debt Instrument [Line Items]
Weighted Avg Interest Rate	8.625%		8.625%	8.625%
Borrowings	$ 75,690		$ 77,340
2029 8.625% Notes | Medium-term Notes | Measurement Input, Share Price
Debt Instrument [Line Items]
Closing price (in dollars per share) | $ / shares	25.23		25.78
Securitization Trusts
Debt Instrument [Line Items]
Borrowings	$ 127,050		$ 186,635
Private Parent Company Notes
Debt Instrument [Line Items]
Borrowings	102,758		80,926
FHLB borrowings
Debt Instrument [Line Items]
Borrowings	7,349		15,330
Bank Borrowings
Debt Instrument [Line Items]
Borrowings	$ 306,842		$ 130,927