FAIR VALUE MEASUREMENTS - Assets and Liabilities Not Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Nonrecurring - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financed Retained Interests	$ 317,664	$ 231,633
Total liabilities	317,664	231,633
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financed Retained Interests	310,397	273,151
Total liabilities	310,397	273,151
Level 1 \| Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financed Retained Interests	0	0
Total liabilities	0	0
Level 2 \| Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financed Retained Interests	310,397	233,684
Total liabilities	310,397	233,684
Level 3 \| Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financed Retained Interests	0	39,467
Total liabilities	$ 0	$ 39,467