DEBT SECURITIES - Schedule of Maturity of Debt Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Amortized Cost
Due in one year or less	$ 91,497
Due after one year through five years	110,271
Due after five years through ten years	518,414
Due after ten years	1,319,770
Amortized Cost	2,039,952	$ 2,334,630
Fair Value
Due in one year or less	90,406
Due after one year through five years	104,914
Due after five years through ten years	495,024
Due after ten years	1,119,877
Fair Value	1,810,221	2,087,571
Amortized Cost
Due in one year or less	18,628
Due after one year through five years	62,119
Due after five years through ten years	14,689
Due after ten years	731,194
Amortized Cost	826,630	872,628
Fair Value
Due in one year or less	18,327
Due after one year through five years	58,733
Due after five years through ten years	12,609
Due after ten years	585,384
Fair Value	$ 675,053	$ 730,397