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Employee Benefit Plans (Pension Benefit Plan) - Schedule of Pension Benefit Plan Obligations and Funded Status (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Change in projected benefit obligation:      
Projected benefit obligation at beginning of period $ 50,927 $ 43,902  
Service cost 1,229 1,270 $ 1,471
Interest cost 339 444 634
Actuarial (gain) - experience (750) (744)  
Actuarial (gain) loss - assumptions (3,327) 2,458  
Benefit payments (756) (509)  
Effects of foreign currency exchange rate changes (3,498) 4,106  
Projected benefit obligation at end of period 44,164 50,927 43,902
Change in plan assets:      
Fair value of plan assets at beginning of period 32,263 28,016  
Actual gain on plan assets 2,943 1,744  
Contributions   24  
Effects of foreign currency exchange rate changes (2,444) 2,479  
Fair value of plan assets at end of period 32,762 32,263 $ 28,016
Unfunded status at end of period $ (11,402) $ (18,664)