Retirement And Other Benefit Plans - Summary of Change in Projected Benefit Obligation and Fair Value of Plan Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Projected Benefit Obligation
Benefit obligation, beginning balance	$ 96,712	$ 78,579
Interest cost	652	1,007
Net service cost	4,352	3,357
Employee contributions	626	571
Benefits paid	(1,097)	(925)
Actuarial (gain) loss, net	(8,390)	5,453
Unrealized (gain) loss on foreign exchange	(7,262)	8,670
Benefit obligation, ending balance	85,593	96,712
Fair Value of Plan Assets
Pension plan assets, beginning balance	61,936	49,914
(Decrease) increase in plan asset value	(5,768)	5,887
Employer contributions	1,419	1,222
Employee contributions	626	571
Benefits and administrative expenses paid	(1,377)	(1,201)
Unrealized (loss) gain on foreign exchange	(4,540)	5,543
Pension plan assets, ending balance	52,296	61,936
Underfunded status of the plans at end of the period	33,297	34,776
Accumulated benefit obligation	$ 85,593	$ 96,712