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Nature of Operations and Summary of Significant Accounting Policies - Allowance for Credit Losses and Loans Held for Sale (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Jan. 01, 2021
--- | --- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Allowance for Credit Losses | $ 245 | $ 245 |
Loans | 12,003,894 | 9,241,861 |
PPP, CARES Act |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Loans | 4,700 | 106,600 |
State and municipal |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Allowance for Credit Losses | $ 245 | $ 245 |
Cumulative effect of ASC 326 adoption | State and municipal |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Allowance for Credit Losses |  |  | $ 245

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- Definition 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 + Details
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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3B -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447 + Details
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