INVESTMENTS - Schedule of AFS Allowance for Credit Losses (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Expected credit loss on available-for-sale debt securities at beginning of period	$ 1,018	$ 566
Provision for (or reversal of) credit loss expense	(191)	452
Expected credit loss on available-for-sale debt securities at end of period	827	1,018
Corporate Bonds
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Expected credit loss on available-for-sale debt securities at beginning of period	894	469
Provision for (or reversal of) credit loss expense	(182)	425
Expected credit loss on available-for-sale debt securities at end of period	712	894
Municipal Bonds
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Expected credit loss on available-for-sale debt securities at beginning of period	3	4
Provision for (or reversal of) credit loss expense	(2)	(1)
Expected credit loss on available-for-sale debt securities at end of period	1	3
Redeemable Preferred Stock
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Expected credit loss on available-for-sale debt securities at beginning of period	121	93
Provision for (or reversal of) credit loss expense	(7)	28
Expected credit loss on available-for-sale debt securities at end of period	$ 114	$ 121