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Employee Benefit Plans (Details) | 12 Months Ended
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Dec. 31, 2022 USD ($) Installment $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares
Defined Benefit Plan Disclosure [Line Items] |  |  |
Employer contribution for defined contribution plan | $ 4,400,000 | $ 4,100,000 | $ 3,900,000
Mandatorily redeemable shares, value | 700,000 |  |
Liability related to mandatorily redeemable shares |  | 0 |
Employee Stock Ownership Plan, common stock, fair value | $ 19,400,000 |  |
Employee Stock Ownership Plan, common stock, shares outstanding (shares) | shares | 123,687 |  |
Nonqualified Deferred Compensation Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Deferred compensation expense | $ 500,000 | $ 100,000 | $ 400,000
Number of annual installments of deferred compensation (installment) | Installment | 2 |  |
Number of days after departure from board of directors for payment of deferred compensation (days) | 90 days |  |
Outside Directors |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Number of deferred common stock (shares) | shares | 6,122 | 6,944 | 10,593
Vested | $ / shares | $ 174.76 | $ 164.23 | $ 111.19

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- Definition Fair value of unearned shares held by the employee stock ownership plan (ESOP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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- Definition Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=109244661&loc=d3e17540-113929 + Details
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