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Debt - Schedule of Debt Summarized (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Sep. 25, 2018
Debt Instrument [Line Items]
Stated interest rate (percentage)	6.875%
Finance lease obligations	$ 3.2
Other	0.0	$ 0.1
Debt issuance costs	(5.9)	(7.2)
Total debt	542.7	622.1
Less: Current debt	(1.9)	(3.3)
Long-term debt	540.8	618.8
Deferred Profit Sharing
Debt Instrument [Line Items]
Long-term debt, gross	4.8	6.6
Capital Lease Obligations
Debt Instrument [Line Items]
Finance lease obligations	3.2	4.7
Revolving credit agreement - U.S. dollar borrowings \| Line of Credit
Debt Instrument [Line Items]
Long-term debt, gross	0.0	76.0
Term loan facility \| Term Loan
Debt Instrument [Line Items]
Long-term debt, gross	197.5	199.5
6.875% senior unsecured notes due October 1, 2026, net of discount of $6.9 million and $7.6 million as of December 31, 2019 and December 31, 2018, respectively
Debt Instrument [Line Items]
Unamortized discount	$ 6.9	7.6
6.875% senior unsecured notes due October 1, 2026, net of discount of $6.9 million and $7.6 million as of December 31, 2019 and December 31, 2018, respectively \| Corporate Bond Securities
Debt Instrument [Line Items]
Stated interest rate (percentage)	6.875%		6.875%
Long-term debt, gross	$ 343.1	$ 342.4