SECURITIES - Schedule of Securities By Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Amortized Cost
Due in one year or less	$ 220
Due after one year through five years	9,727
Due after five years through ten years	68,708
Due after ten years	605,064
Amortized cost, allocated and single maturity date	683,719
Mortgage-backed securities	505,416
Amortized Cost	1,189,135	$ 1,182,501
Fair Value
Due in one year or less	220
Due after one year through five years	9,191
Due after five years through ten years	61,691
Due after ten years	490,855
Total available-for-sale securities, gross	561,957
Mortgage-backed securities	438,918
Total securities available-for-sale	1,000,875	991,426
Amortized Cost
Due in one year or less	0
Due after one year through five years	0
Due after five years through ten years	7,239
Due after ten years	124,740
Total held-to-maturity securities, gross	131,979
Mortgage-backed securities	0
Amortized Cost	131,979
Fair Value
Due in one year or less	0
Due after one year through five years	0
Due after five years through ten years	6,283
Due after ten years	103,198
Total held-to-maturity securities, gross	109,481
Mortgage-backed securities	0
Fair Value	$ 109,481	$ 113,107