Investment Securities - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jan. 01, 2021
Schedule of Available for sale Securities and Held to maturity Securities [Line Items]
Accrued interest on investment securities	$ 30,400	$ 26,800
Allowance for credit losses	245	245
Carrying value of securities pledged as collateral	826,100	873,200
Securities sold under repurchase agreements	232,600	175,100
State and municipal
Schedule of Available for sale Securities and Held to maturity Securities [Line Items]
Allowance for credit losses	$ 245	$ 245
State and municipal \| Cumulative effect of ASC 326 adoption
Schedule of Available for sale Securities and Held to maturity Securities [Line Items]
Allowance for credit losses			$ 245

Debt Securities, Available-for-sale and Held-to-maturity, Accrued Interest

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- Definition

Schedule of Available for sale Securities and Held to maturity Securities [Line Items]

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- Definition

Securities Pledged as Collateral

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Amount, excluding accrued interest, of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

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Amount of asset associated with funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 20
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226038-175313

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-Topic 210
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