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Segment Information - Reportable Segment Revenue, Income (Loss) Before Income Taxes, (Provision) Benefit for Income Taxes and Net Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Segment Reporting Information [Line Items] |  |
Revenues | $ 2,690.8 | $ 2,808.4
Income (loss) before income taxes | 38.9 | 52.2
Severance expense | 0.9 |
U.S. |  |
Segment Reporting Information [Line Items] |  |
Revenues | 2,007.6 | 2,062.8
Income (loss) before income taxes | 42.2 | 46.4
Gain on real estate and dealership transactions |  | 5.2
Asset impairments |  | 2.0
U.S. and Brazil |  |
Segment Reporting Information [Line Items] |  |
Loss on legal matters |  | 2.4
U.K. |  |
Segment Reporting Information [Line Items] |  |
Revenues | 590.7 | 642.2
Income (loss) before income taxes | (2.7) | 6.2
Brazil |  |
Segment Reporting Information [Line Items] |  |
Revenues | 92.5 | 103.4
Income (loss) before income taxes | $ (0.6) | $ (0.4)

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