Pensions - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Multiemployer plans, withdrawal charges	$ 2.5		$ 2.5
Withdrawal liability from IAM National Pension Fund		$ 0.3
U.S. Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions		1.9
Non-U.S. Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions		0.7	$ 0.6
Estimated employer contributions remaining in current year		$ 0.5