SECURITIES - Amortized Cost and Fair Value By Contractual Maturity, Held-to-maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Held-to-maturity, Amortized Cost
One to five years	$ 19,806
Five to ten years	82,963
Pass-through MBS issued by GSEs and agency CMO	485,231
Total Amortized Cost	588,000
Held-to-maturity, Fair Value
One to five years	18,303
Five to ten years	71,425
Pass-through MBS issued by GSEs and agency CMO	413,109
Total Fair Value	$ 502,837	$ 516,930