FAIR VALUE MEASUREMENTS - Schedule of Fair Value, Assets and Liabilities Measured on a Recurring Basis (Details) - Fair Value, Recurring - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Financial assets:
Debt security	$ 188,511	$ 286,757
Total financial assets	246,059	345,828
CLO subordinated note
Financial assets:
Debt security	21,730	26,901
Equity securities
Financial assets:
Equity securities	35,818	32,170
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Debt security	0	0
Total financial assets	35,134	31,547
Quoted Prices in Active Markets for Identical Assets (Level 1) \| CLO subordinated note
Financial assets:
Debt security	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Equity securities
Financial assets:
Equity securities	35,134	31,547
Significant Other Observable Inputs (Level 2)
Financial assets:
Debt security	142,685	241,341
Total financial assets	142,685	241,341
Significant Other Observable Inputs (Level 2) \| CLO subordinated note
Financial assets:
Debt security	0	0
Significant Other Observable Inputs (Level 2) \| Equity securities
Financial assets:
Equity securities	0	0
Significant Unobservable Inputs (Level 3)
Financial assets:
Debt security	45,826	45,416
Total financial assets	68,240	72,940
Significant Unobservable Inputs (Level 3) \| CLO subordinated note
Financial assets:
Debt security	21,730	26,901
Significant Unobservable Inputs (Level 3) \| Equity securities
Financial assets:
Equity securities	$ 684	$ 623