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Commitments and Contingencies - Lifetime Lube, Oil and Filter Contracts Acquired (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Product Information [Line Items] |  |
Total | $ 149.6 | $ 126.1
Lifetime Oil Contracts |  |
Product Information [Line Items] |  |
2018 | 30.1 |
2019 | 23.9 |
2020 | 19.0 |
2021 | 15.8 |
2022 | 13.4 |
Thereafter | 48.3 |
Total | $ 150.5 |

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