FAIR VALUE MEASUREMENTS - Fair Value of Debt (Details) $ in Thousands	Jun. 30, 2026 USD ($) $ / shares	Jan. 28, 2026	Dec. 31, 2025 USD ($) $ / shares	Jan. 31, 2021
Debt Instrument [Line Items]
Weighted Avg Interest Rate	8.12%		7.53%
Borrowings	$ 562,733		$ 827,998
Level 2
Debt Instrument [Line Items]
Borrowings	198,110		283,999
Level 3
Debt Instrument [Line Items]
Borrowings	$ 364,623		$ 543,999
Medium-term Notes
Debt Instrument [Line Items]
Weighted Avg Interest Rate	8.379%		7.35%
2026 Notes \| Medium-term Notes
Debt Instrument [Line Items]
Weighted Avg Interest Rate	5.50%		5.50%	5.50%
Borrowings	$ 0		$ 95,722
2026 Notes \| Medium-term Notes \| Measurement Input, Share Price
Debt Instrument [Line Items]
Closing price (in dollars per share) \| $ / shares	0		25.19
2028 Notes (8.00%) \| Medium-term Notes
Debt Instrument [Line Items]
Weighted Avg Interest Rate	8.00%		8.00%
Borrowings	$ 40,432		$ 40,320
2028 Notes (8.00%) \| Medium-term Notes \| Measurement Input, Share Price
Debt Instrument [Line Items]
Closing price (in dollars per share) \| $ / shares	25.27		25.20
2029 8.50% Notes \| Medium-term Notes
Debt Instrument [Line Items]
Weighted Avg Interest Rate	8.50%		8.50%
Borrowings	$ 73,387		$ 72,267
2029 8.50% Notes \| Medium-term Notes \| Measurement Input, Share Price
Debt Instrument [Line Items]
Closing price (in dollars per share) \| $ / shares	25.55		25.16
2029 8.625% Notes \| Medium-term Notes
Debt Instrument [Line Items]
Weighted Avg Interest Rate	8.625%		8.625%
Borrowings	$ 76,020		$ 75,690
2029 8.625% Notes \| Medium-term Notes \| Measurement Input, Share Price
Debt Instrument [Line Items]
Closing price (in dollars per share) \| $ / shares	25.34		25.23
2031 8.50% Notes \| Medium-term Notes
Debt Instrument [Line Items]
Weighted Avg Interest Rate	8.50%	8.50%	0.00%
Borrowings	$ 8,271		$ 0
2031 8.50% Notes \| Medium-term Notes \| Measurement Input, Share Price
Debt Instrument [Line Items]
Closing price (in dollars per share) \| $ / shares	26.25		0
Private Parent Company Notes
Debt Instrument [Line Items]
Borrowings	$ 117,555		$ 102,758
Securitization Trusts
Debt Instrument [Line Items]
Borrowings	105,099		127,050
FHLB borrowings
Debt Instrument [Line Items]
Borrowings	6,310		7,349
Bank Borrowings
Debt Instrument [Line Items]
Borrowings	$ 135,659		$ 306,842