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Cash Flow Information (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2019
Supplemental Cash Flow Information [Abstract] |  |  |  |
Cash and cash equivalents | $ 350.0 |  | $ 569.6 |
Restricted cash included in Other Current Assets | 0.1 |  | 0.1 |
Total cash, cash equivalents, and restricted cash | 350.1 | $ 411.1 | $ 569.7 | $ 42.5
Accrued purchases of property and equipment | 12.7 | 17.2 |  |
Non-cash investing and financing activities related to property acquired under other financing arrangements |  | 0.4 |  |
Adjustments to right-of use assets including right-of-use assets obtained in exchange for new operating lease liabilities | 2.8 | 11.3 |  |
Adjustments to right-of use assets including right-of-use assets obtained in exchange for new finance lease liabilities | 7.7 | 15.7 |  |
Interest payments, net of amounts capitalized and including interest on vehicle inventory financing | 17.9 | 47.6 |  |
Income tax payments, net of income tax refunds | $ 0.1 | $ 0.5 |  |

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