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Retirement Plans - Narrative (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined contribution plan, cost recognized | $ 27,599,000 | $ 25,595,000 | $ 23,641,000
Defined benefit plan, voluntary contribution | $ 1,506,000 | 9,892,000 |
Corridor amount | 10.00% |  |
Net unrecognized actuarial losses expected to be recognized in 2023 | $ 11,850,000 |  |
Net unrecognized actuarial losses expected to be recognized in 2023, net of tax | 8,782,000 |  |
Net periodic benefit cost (income), non-service cost | $ (1,499,000) | (3,472,000) | $ (569,000)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income (Expense) |  |
U.K Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Discount rate used to compute periodic benefit cost | 5.06% |  |
Expected long-term rates of return on plans' assets in next fiscal year | 2.40% |  |
U.S. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan, voluntary contribution | $ 0 | $ 9,000,000 |
Increase (decrease) in projected benefit obligation | $ (1,393,852) |  |
Discount rate used to compute periodic benefit cost | 5.05% |  |
Expected long-term rates of return on plans' assets in next fiscal year | 4.80% |  |

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- Definition Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year, Net of Tax + References No definition available. + Details
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