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Long-Term Debt and Commitments, Summary of Long-Term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Feb. 14, 2017	Jun. 23, 2015
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 937.0	$ 934.2
Less: Current maturities	0.8	1.0
Long-term debt	936.2	933.2
Term Loan Facility - Variable Tranche [Member]
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 539.2	535.6	$ 788.0	$ 1,078.0
Maturity date	Feb. 14, 2024
Unamortized discount and deferred financing costs	$ 8.8	12.4
Senior Notes due 2028 [Member]
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 394.6	393.9
Maturity date	Jun. 30, 2028
Unamortized deferred financing cost	$ 5.4
Netherlands Term Loan Due 2022 [Member]
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 0.2	0.6
Maturity date	Dec. 31, 2022
Japan Loan Facilities [Member]
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 3.0	$ 4.1

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