SECURITIES - Schedule of Securities By Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Amortized Cost
Due in one year or less	$ 505
Due after one year through five years	8,813
Due after five years through ten years	50,558
Due after ten years	629,847
Total available-for-sale securities, gross	689,723
Mortgage-backed securities	498,259
Amortized Cost	1,187,982	$ 1,226,319
Fair Value
Due in one year or less	505
Due after one year through five years	8,095
Due after five years through ten years	45,514
Due after ten years	519,713
Total available-for-sale securities, gross	573,827
Mortgage-backed securities	419,230
Total securities available-for-sale	993,057	1,051,728
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	130,746
Total held-to-maturity securities, gross	130,746
Mortgage-backed securities	0
Amortized Cost	130,746
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	113,997
Total held-to-maturity securities, gross	113,997
Mortgage-backed securities	0
Fair Value	$ 113,997	$ 119,215