DEBT SECURITIES - Schedule of Maturity of Debt Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Amortized Cost
Due in one year or less	$ 10,725
Due after one year through five years	66,180
Due after five years through ten years	371,411
Due after ten years	1,852,529
Amortized Cost	2,300,845	$ 2,039,952
Fair Value
Due in one year or less	10,684
Due after one year through five years	63,335
Due after five years through ten years	355,748
Due after ten years	1,732,781
Fair Value	2,162,548	1,810,221
Amortized Cost
Due in one year or less	20,000
Due after one year through five years	37,076
Due after ten years	689,309
Amortized Cost	746,385	826,630
Fair Value
Due in one year or less	19,896
Due after one year through five years	35,836
Due after ten years	570,225
Fair Value	$ 625,957	$ 675,053