SECURITIES - Schedule of Amortized Cost and Fair Value of Debt Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Available-for-sale, Amortized Cost
Due less than one year	$ 40,601
Due after one year through five years	130,708
Due after five years through ten years	321,043
Due greater than ten years	117,816
Mortgage-backed securities - residential	312,607
Mortgage-backed securities - commercial	228,888
Amortized Cost	1,151,663	$ 1,161,172
Available-for-sale, Fair Value
Due less than one year	40,444
Due after one year through five years	126,089
Due after five years through ten years	288,203
Due greater than ten years	102,843
Mortgage-backed securities - residential	286,470
Mortgage-backed securities - commercial	215,965
Securities available-for-sale	1,060,014	1,039,322
Held-to-maturity, Amortized Cost
Due less than one year	44,181
Due after one year through five years	30,815
Due after five years through ten years	61,196
Due greater than ten years	204,201
Mortgage-backed securities - residential	131,045
Mortgage-backed securities - commercial	130,890
Total	602,328
Held-to-maturity, Estimated Fair Value
Due less than one year	43,784
Due after one year through five years	29,515
Due after five years through ten years	58,841
Due greater than ten years	201,249
Mortgage-backed securities - residential	119,868
Mortgage-backed securities - commercial	121,493
Total	$ 574,750	$ 615,944

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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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