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Income Taxes (Reconciliation of Statutory and Effective Tax Rates) (Details) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Disclosure [Abstract] |  |  |
Statutory tax rate | 21.00% | 21.00% | 21.00%
Effective tax rate increase (decrease) - State taxes net of federal benefit | 2.70% | 2.60% | 2.00%
Effective tax rate increase (decrease) - Tax-exempt interest | (1.20%) | (0.90%) | (1.70%)
Effective tax rate increase (decrease) - Life insurance | (0.80%) | (0.80%) | (1.60%)
Effective tax rate increase (decrease) - Tax credits | (3.20%) | (4.40%) | (6.00%)
Effective tax rate increase (decrease) - unrecognized tax benefits, percent | 0.10% | 0.30% | (1.60%)
Effective tax rate increase (decrease) - subsidiary liquidation, percent |  |  | (1.20%)
Effective tax rate increase (decrease) - Other | (0.40%) | 0.30% | 1.50%
Effective tax rate | 18.20% | 18.10% | 12.40%

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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