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Debt - Schedule of Debt Summarized (Details) - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019 | Sep. 25, 2018
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Debt | $ 637.8 |  |
Debt issuance costs | (4.9) | $ (5.9) |
Total debt | 632.9 | 542.7 |
Less: Current debt | (2.7) | (1.9) |
Long-term debt | 630.2 | 540.8 |
Revolving credit facility | Revolving credit facility - U.S. dollar borrowings |  |  |
Debt Instrument [Line Items] |  |  |
Debt | 90.0 | 0.0 |
Term loan facility | Term loan facility |  |  |
Debt Instrument [Line Items] |  |  |
Debt | 196.0 | 197.5 |
Senior unsecured notes |  |  |
Debt Instrument [Line Items] |  |  |
Discount | 6.3 | 6.9 |
Senior unsecured notes | 6.875% senior unsecured notes due October 1, 2026, net of discount of $6.3 million and $6.9 million at September 30, 2020 and December 31, 2019, respectively |  |  |
Debt Instrument [Line Items] |  |  |
Debt | $ 343.7 | 343.1 |
Interest rate (percent) | 6.875% |  | 6.875%
French employee profit sharing |  |  |
Debt Instrument [Line Items] |  |  |
Debt | $ 4.8 | 4.8 |
Finance lease and capital lease obligations, respectively |  |  |
Debt Instrument [Line Items] |  |  |
Finance lease and capital lease obligations, respectively | $ 3.3 | $ 3.2 |

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