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Summary Of Significant Accounting And Reporting Policies (Details) $ / shares in Units, $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Oct. 18, 2022 $ / shares | Dec. 31, 2022 USD ($) branch $ / shares | Dec. 31, 2021 USD ($) $ / shares
Condensed Financial Statements, Captions [Line Items] |  |  |
Number of Reportable Segments |  | 1 |
Common stock, par value (in dollars per share) | $ / shares | $ 2.50 | $ 2.50 | $ 2.50
DiscontinuationofInterestThresholdDays |  | 90 days |
Financing Receivable, Threshold Period Past Due |  | 30 days |
Threshold period past due for write-off of financing receivable |  | 120 days |
Other real estate, foreclosed assets, and repossessed assets |  | $ 900 | $ 1,300
Amortization Method Qualified Affordable Housing Project Investments |  | 42,100 | 28,600
Qualified Affordable Housing Project Investments, Commitment |  | $ 30,900 | $ 18,900
Citizens Commerce Bancshares, Inc. |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Business acquisition, shares issuable, share ratio | 0.1666 |  |
City National |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Number of offices | branch |  | 94 |

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- Definition Amount of investment in qualified affordable housing projects. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 740 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985 + Details
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