Securities, Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Available-for-sale, amortized cost [Abstract]
Due in one year or less	$ 33,089
Due after one through five years	336,248
Due after five through ten years	169,173
Due after ten years	175,686
Amortized cost	1,362,748	$ 1,430,605
Available for sale, fair value [Abstract]
Due in one year or less	32,613
Due after one through five years	305,693
Due after five through ten years	145,760
Due after ten years	141,153
Fair value	1,201,253	1,256,226
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Available-for-sale, amortized cost [Abstract]
Without single maturity date	558,964
Amortized cost	558,964	593,917
Available for sale, fair value [Abstract]
Without single maturity date	487,899
Fair value	487,899	520,085
Asset-backed Securities [Member]
Available-for-sale, amortized cost [Abstract]
Without single maturity date	89,588
Amortized cost	89,588	91,363
Available for sale, fair value [Abstract]
Without single maturity date	88,135
Fair value	$ 88,135	$ 89,107

Amortized cost 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/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1))
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ References

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

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