Retirement and Other Benefit Plans (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) plan	Dec. 31, 2020 USD ($) plan	Dec. 31, 2019 USD ($) plan
Retirement Benefits [Abstract]
Number of defined contribution plans maintained by the company | plan	4	4	4
Defined contribution retirement plan cost | $	$ 36.4	$ 30.0	$ 33.4