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Investment Securities (Scheduled Maturities of Securities Available for Sale and Securities Held to Maturity) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Investments [Abstract]
Debt securities available for sale, Due in one year or less, Amortized Cost	$ 5,233
Debt securities available for sale, Due from one to five years, Amortized Cost	80,336
Debt securities available for sale, Due after five years through ten years, Amortized Cost	155,699
Debt securities available for sale, Due after ten years, Amortized Cost	908,207
Securities available for sale, Amortized Cost	1,149,475	$ 1,184,835
Debt securities available for sale, Due in one year or less, Fair Value	5,202
Debt securities available for sale, Due from one to five years, Fair Value	75,020
Debt securities available for sale, Due after five years through ten years, Fair Value	135,519
Debt securities available for sale, Due after ten years, Fair Value	749,790
Debt securities available for sale, Fair Value	965,531	1,178,515
Debt securities held to maturity, Due in one year or less, Amortized Cost	34,464
Debt securities held to maturity, Due from one to five years, Amortized Cost	43,515
Debt securities held to maturity, Due after five years through ten years, Amortized Cost	38,024
Debt securities held to maturity, Due after ten years, Amortized Cost	81,540
Securities held to maturity, Amortized Cost	197,543	205,586
Debt securities held to maturity, Due in one year or less, Fair Value	34,223
Debt securities held to maturity, Due from one to five years, Fair Value	41,932
Debt securities held to maturity, Due after five years through ten years, Fair Value	35,284
Debt securities held to maturity, Due after ten years, Fair Value	68,999
Securities held to maturity, Fair Value	$ 180,438	$ 209,820

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- Definition

Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126980459&loc=d3e62586-112803

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (f)(1)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563

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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=SL120269820-111563

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X

- References

No definition available.

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