INVESTMENTS - Summary of debt securities by major security type (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 59,584	$ 83,113
Gross Unrealized Gains	8	49
Gross Unrealized Losses	(61)	(31)
Fair Value	59,531	83,131
Municipal Debt Securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	3,866	3,859
Gross Unrealized Gains	1	4
Gross Unrealized Losses	(1)	0
Fair Value	3,866	3,863
Corporate Debt Securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	37,765	41,336
Gross Unrealized Gains	6	38
Gross Unrealized Losses	(40)	(7)
Fair Value	37,731	41,367
U.S. Government Agency Securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	17,953	37,918
Gross Unrealized Gains	1	7
Gross Unrealized Losses	(20)	(24)
Fair Value	17,934	37,901
Certificates of Deposit
Debt Securities, Available-for-Sale [Line Items]
Certificates of Deposit	$ 6,498	$ 6,498