Fair Value - Fair value of derivatives is based on valuation models using observable market data as of the measurement date (Level 2 inputs) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair value measurement
Securities available-for-sale	$ 1,340,781	$ 1,330,481
U.S. Government agencies
Fair value measurement
Securities available-for-sale	100,149	98,473
Mortgage Backed Securities - residential
Fair value measurement
Securities available-for-sale	618,254	620,248
Mortgage Backed Securities - commercial
Fair value measurement
Securities available-for-sale	7,657	9,677
Collateralized Mortgage Obligations
Fair value measurement
Securities available-for-sale	203,202	203,485
State and municipal obligations
Fair value measurement
Securities available-for-sale	371,895	360,153
Municipal taxable
Fair value measurement
Securities available-for-sale	34,079	32,515
U.S. Treasury
Fair value measurement
Securities available-for-sale	2,631	2,944
Collateralized debt obligations
Fair value measurement
Securities available-for-sale	2,914	2,986
Level 2
Fair value measurement
Securities available-for-sale	1,336,687	1,325,950
Derivative Assets	1,902	2,838
Derivative Liability	(1,902)	(2,838)
Level 2 \| U.S. Government agencies
Fair value measurement
Securities available-for-sale	100,149	98,473
Level 2 \| Mortgage Backed Securities - residential
Fair value measurement
Securities available-for-sale	618,254	620,248
Level 2 \| Mortgage Backed Securities - commercial
Fair value measurement
Securities available-for-sale	7,657	9,677
Level 2 \| Collateralized Mortgage Obligations
Fair value measurement
Securities available-for-sale	203,202	203,485
Level 2 \| State and municipal obligations
Fair value measurement
Securities available-for-sale	370,715	358,608
Level 2 \| Municipal taxable
Fair value measurement
Securities available-for-sale	34,079	32,515
Level 2 \| U.S. Treasury
Fair value measurement
Securities available-for-sale	2,631	2,944
Level 3
Fair value measurement
Securities available-for-sale	4,094	4,531
Level 3 \| State and municipal obligations
Fair value measurement
Securities available-for-sale	1,180	1,545
Level 3 \| Collateralized debt obligations
Fair value measurement
Securities available-for-sale	$ 2,914	$ 2,986

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).

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

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-Publisher FASB
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-Section 55
-Paragraph 22
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313

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- Definition

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+ References

No definition available.

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