FAIR VALUES OF FINANCIAL INSTRUMENTS - Fair Value of Derivatives as of Measurement Date (Level 2 Inputs) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Fair value measurement
Fair Value	$ 1,195,990	$ 1,259,137
U.S. Government agencies
Fair value measurement
Fair Value	78,982	91,440
Mortgage Backed Securities - residential
Fair value measurement
Fair Value	541,320	569,885
Mortgage Backed Securities - commercial
Fair value measurement
Fair Value	13,661	7,483
Collateralized mortgage obligations
Fair value measurement
Fair Value	163,026	180,829
State and municipal
Fair value measurement
Fair Value	360,328	370,811
Municipal taxable
Fair value measurement
Fair Value	35,777	34,285
U.S. Treasury
Fair value measurement
Fair Value		1,402
Collateralized debt obligations
Fair value measurement
Fair Value	2,896	3,002
Level 1
Fair value measurement
Fair Value	0	0
Level 2
Fair value measurement
Fair Value	1,192,289	1,254,955
Derivative Assets	3,060	2,878
Derivative Liabilities	(3,060)	(2,878)
Level 2 \| U.S. Government agencies
Fair value measurement
Fair Value	78,982	91,440
Level 2 \| Mortgage Backed Securities - residential
Fair value measurement
Fair Value	541,320	569,885
Level 2 \| Mortgage Backed Securities - commercial
Fair value measurement
Fair Value	13,661	7,483
Level 2 \| Collateralized mortgage obligations
Fair value measurement
Fair Value	163,026	180,829
Level 2 \| State and municipal
Fair value measurement
Fair Value	359,523	369,631
Level 2 \| Municipal taxable
Fair value measurement
Fair Value	35,777	34,285
Level 2 \| U.S. Treasury
Fair value measurement
Fair Value		1,402
Level 3
Fair value measurement
Fair Value	3,701	4,182
Level 3 \| State and municipal
Fair value measurement
Fair Value	805	1,180
Level 3 \| Collateralized debt obligations
Fair value measurement
Fair Value	$ 2,896	$ 3,002

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlying, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

No definition available.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlying, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

No definition available.

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- Definition

Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
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