Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Long-Term Debt and Commitments, Summary of Long-Term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Feb. 14, 2017	Jun. 23, 2015
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 934.2	$ 826.4
Less: Current maturities	1.0	2.1
Long-term debt	933.2	824.3
Term Loan Facility - Variable Tranche [Member]
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 535.6	642.0	$ 788.0	$ 1,078.0
Maturity date	Feb. 14, 2024
Unamortized discount and deferred financing costs	$ 12.4	16.0
Senior Notes due 2028 [Member]
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 393.9	0.0
Maturity date	Jun. 30, 2028
Unamortized deferred financing cost	$ 6.1
Term Loan Facility - Fixed Tranche [Member]
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 0.0	177.8		$ 300.0
Maturity date	May 09, 2021
Unamortized discount and deferred financing costs	$ 0.0	0.2
Netherlands Term Loan Due 2020 [Member]
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 0.0	1.1
Maturity date	Dec. 31, 2020
Netherlands Term Loan Due 2022 [Member]
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 0.6	1.0
Maturity date	Dec. 31, 2022
Japan Loan Facilities [Member]
Long-Term Debt and Commitments [Abstract]
Total long-term debt	$ 4.1	$ 4.5