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Debt - Schedule of Debt Summarized (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Debt	$ 622.2
Debt issuance costs	(4.3)	$ (4.6)
Total debt	617.9	593.3
Less: Current debt	(2.7)	(2.8)
Long-term debt	615.2	590.5
French employee profit sharing
Debt Instrument [Line Items]
Debt	4.7	5.0
Finance lease obligations
Debt Instrument [Line Items]
Finance lease obligations	3.3	3.5
Term loan facility | Term loan facility
Debt Instrument [Line Items]
Debt	$ 195.0	195.5
6.875% senior unsecured notes due October 1, 2026, net of discount of $5.8 million and $6.1 million at March 31, 2021 and December 31, 2020, respectively | Unsecured Debt
Debt Instrument [Line Items]
Interest rate (percent)	6.875%
Discount	$ 5.8	6.1
Debt	344.2	343.9
Revolving Credit Facility | Revolving credit facility - U.S. dollar borrowings | Revolving credit facility
Debt Instrument [Line Items]
Debt	$ 75.0	$ 50.0

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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