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Employee Benefit Plans - Narrative (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 USD ($) calendar_year | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |  |
Employer matching contribution percentage | 100.00% |  |
Employer matching contribution, percent of employees' gross pay | 6.00% |  |
Amortization of unrecognized net actuarial loss | $ 288 | $ (592) | $ (686)
401(k) Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Deferral rate | 6.00% |  |
Percent of annual salary employees may contribute | 15.00% |  |
Matching contributions | $ 4,900 | 4,300 | $ 4,300
Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of Final Average Annual Compensation (five highest consecutive calendar year's earnings out of the last ten years of employment) | 0.75% |  |
Number of highest consecutive calendar years of earnings | calendar_year | 5 |  |
Percentage of Final Average Annual Compensation in excess of average social security wage base | 0.65% |  |
Years of service used for Final Average Annual Compensation in excess of average social security wage base calculation | 35 years |  |
Vesting period | 5 years |  |
Assets for plan benefits, defined benefit plan | $ 3,000 | 3,200 |
Amortization of unrecognized net actuarial loss | $ (256) | (577) |
SERP |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Number of highest consecutive calendar years of earnings | calendar_year | 5 |  |
Amortization of unrecognized net actuarial loss | $ 544 | (15) |
Lifetime monthly pension benefits, percent | 3.00% |  |
Maximum percent of final average compensation | 60.00% |  |
Percent of participant's primary social security benefit | 50.00% |  |
Liability, defined benefit plan | $ 3,500 | $ 4,700 |
Maximum | Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Years of service used for Final Average Annual Compensation calculation | 40 years |  |
Maximum | SERP |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Maximum years of service | 20 years |  |

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