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Retirement Plans - Fund Status (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]    
Total underfunded status $ 15,139 $ 7,845
Accumulated other comprehensive loss, before income taxes (261,102) (256,695)
Qualified Plan    
Defined Benefit Plan Disclosure [Line Items]    
U.S. Qualified Plan 24,006 25,913
U.K. prepaid pension asset included in "Other noncurrent assets" (10,876) (20,401)
Nonqualified Plan    
Defined Benefit Plan Disclosure [Line Items]    
U.S. Qualified Plan 230 233
U.K. prepaid pension asset included in "Other noncurrent assets" (10,954) (20,401)
Unfunded status of nonqualified defined benefit pension plans included in "Other noncurrent liabilities" 1,858 2,100
Total underfunded status 15,139 7,845
U.K Plan | Qualified Plan    
Defined Benefit Plan Disclosure [Line Items]    
U.S. Qualified Plan 1,688 1,602
U.K Plan | Nonqualified Plan    
Defined Benefit Plan Disclosure [Line Items]    
U.K. prepaid pension asset included in "Other noncurrent assets" (78) 0
U.S. | Qualified Plan    
Defined Benefit Plan Disclosure [Line Items]    
U.S. Qualified Plan $ 22,317 $ 24,311