SECURITIES - Schedule of Available For Sale Securities By Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Amortized Cost
Due in one year or less	$ 3,073
Due after one year through five years	6,443
Due after five years through ten years	57,481
Due after ten years	755,611
Total debt securities, gross	822,608
Mortgage-backed securities	578,175
Amortized Cost	1,400,783	$ 1,376,969
Fair Value
Due in one year or less	3,059
Due after one year through five years	6,431
Due after five years through ten years	55,437
Due after ten years	628,293
Total debt securities, gross	693,220
Mortgage-backed securities	492,308
Total debt securities	1,185,528	1,398,558
Amortized Cost
Due in one year or less	0
Due after one year through five years	0
Due after five years through ten years	0
Due after ten years	128,242
Total held-to-maturity securities, gross	128,242
Mortgage-backed securities	0
Amortized cost	128,242
Fair Value
Due in one year or less	0
Due after one year through five years	0
Due after five years through ten years	0
Due after ten years	111,029
Total held-to-maturity securities, gross	111,029
Mortgage-backed securities	0
Fair value	$ 111,029	$ 0