Employee Benefit Plans - 401K Contribution and Supplemental Compensation agreement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Employee Benefit Plans
Base contribution as a percentage of employee gross pay (as a percent)	2.00%
Employer maximum match of an employee's contributions of first 4% of eligible compensation (as a percent)	100.00%
Percentage of eligible compensation, matched 100% by employer	4.00%
Company's matching contributions under certain 401(k) savings plans	$ 7.6	$ 6.6	$ 6.7
EMEA pension plans
Employee Benefit Plans
Charges for pension plans	$ 4.3	$ 4.6	$ 3.4