INVESTMENTS - Summary of Allowance for Credit Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 313	$ 323	$ 0
Expected credit losses on securities where credit losses were not previously recognized	17,830	95	22,570
Additions (reductions) for expected credit losses on securities where credit losses were previously recognized	(3,831)	50	(11,542)
Impairments of securities which the Company intends to sell or more likely than not will be required to sell	0	0	0
Securities sold/redeemed/matured	(2,579)	(155)	(10,705)
Balance at end of period	$ 11,733	$ 313	$ 323