Pension And Profit-Sharing Plans (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) h	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Defined Contribution Plan Disclosure [Line Items]
Total unfunded portion of the defined benefit obligations	$ 9.2	$ 13.5
Expenses related to retirement programs	$ 20.0	$ 18.7	$ 16.3
Four Zero One K Plan
Defined Contribution Plan Disclosure [Line Items]
Maximum annual contributions per employee, percent	4.25%
Minimum working hours per employee required to be eligible for discretionary contribution | h	1,000
First Three Percent Of Employee Pay | Four Zero One K Plan
Defined Contribution Plan Disclosure [Line Items]
Percentage of employee contribution employer matches	100.00%
Percentage of employee pay employer matches	3.00%
More Than Three Percent Up To Eight Percent Of Employee Pay | Four Zero One K Plan
Defined Contribution Plan Disclosure [Line Items]
Percentage of employee contribution employer matches	25.00%
Percentage of employee pay employer matches	5.00%