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Financial Instruments and Risk Management (Details) - USD ($) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Sep. 27, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Aug. 27, 2019
Derivatives, Fair Value [Line Items] |  |  |  |  |
Cash deposits related to commodity derivative contracts |  | $ 0.6 | $ 1.0 |  |
Realized loss (gain) on derivative |  | (0.9) |  |  |
Remaining pre-tax income (loss) deferred on derivative contracts |  | (3.4) | 1.0 | $ 0.0 |
Income tax (benefit) on derivative contracts |  | (0.8) | 0.2 | $ 0.0 |
Interest Rate Swap |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Notional amount |  | 127.5 |  |  | $ 150.0
Quarterly decrease in derivative balance | $ 7.5 |  |  |  |
Realized loss (gain) on derivative |  |  | 0.2 |  |
Remaining pre-tax income (loss) deferred on derivative contracts |  | (3.4) | 0.9 |  |
Income tax (benefit) on derivative contracts |  | $ (0.8) | $ 0.2 |  |

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