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Retirement Plans - Schedule of Changes in Benefit Obligations and Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]      
Benefit obligation at beginning of year $ 8,500    
Benefit obligation at end of year 6,700 $ 8,500  
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]      
Fair value of plan assets at beginning of year 6,300    
Fair value of plan assets at end of year 4,900 6,300  
United Kingdom Subsidiary | UK Plan      
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]      
Benefit obligation at beginning of year 349,147 383,142  
Interest cost 5,693 5,326 $ 6,401
Actuarial gain (116,372) (22,071)  
Benefits paid (11,095) (13,939)  
Foreign currency exchange rate changes (33,417) (3,311)  
Benefit obligation at end of year 193,956 349,147 383,142
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]      
Fair value of plan assets at beginning of year 356,532 347,411  
Actual (loss) return on plan assets (105,544) 21,809  
Employer contributions 4,875 4,956  
Benefits paid (11,095) (13,939)  
Foreign currency exchange rate changes (34,484) (3,705)  
Fair value of plan assets at end of year 210,284 356,532 $ 347,411
Funded status at end of year $ 16,328 $ 7,385