Retirement And Other Benefit Plans - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
Employer contributions to defined contribution plan	$ 11,600	$ 9,000	$ 7,700
Deferred Compensation Arrangement with Individual, Postretirement Benefits
Other long-term liabilities	149,424	116,353
Accrued expenses and other current liabilities	$ 72,956	$ 52,897
Deferred compensation, percentage of funds invested	100.00%
Wage inflation	2.00%	2.00%
Next fiscal year minimum funding requirements	$ 1,400
Minimum
Deferred Compensation Arrangement with Individual, Postretirement Benefits
Wage inflation	0.50%	0.00%
Maximum
Deferred Compensation Arrangement with Individual, Postretirement Benefits
Wage inflation	2.00%	2.00%
Deferred Compensation
Deferred Compensation Arrangement with Individual, Postretirement Benefits
Compensation deferred by participants	$ 3,100	$ 2,900	900
Amount withdrawn from the Plan by participants	2,000	200	$ 1,700
Other long-term liabilities	42,600	38,500
Accrued expenses and other current liabilities	1,100	200
Life insurance contract assets	$ 47,800	$ 35,300