INVESTMENTS - Available-for-sale Debt Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Amortized cost	$ 60,127	$ 50,604
Gross accumulated unrealized gains	589	230
Gross accumulated unrealized losses	(223)	(582)
Available-for-sale debt securities, fair value	60,493	50,252
Fair value of available-for-sale debt securities in a continuous unrealized loss position, 12 months or longer	6,100	6,000
Mortgage-backed and asset-backed securities
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
Amortized cost	60,127	50,604
Gross accumulated unrealized gains	589	230
Gross accumulated unrealized losses	(223)	(582)
Available-for-sale debt securities, fair value	$ 60,493	$ 50,252