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v3.21.1

Segment Information (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 USD ($) item | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($)
Segment Reporting Information |  |  |
Number of reportable segments | item | 4 |  |
Revenues and segment income by reportable segment |  |  |
Revenues | $ 5,773.8 | $ 5,009.1 |
Segment income | $ 247.6 | 71.5 |
Retail Automotive Dealership |  |  |
Segment Reporting Information |  |  |
Number of reportable segments | item | 1 |  |
Number of operating segments | item | 6 |  |
Revenues and segment income by reportable segment |  |  |
Revenues | $ 5,206.9 | 4,416.6 | $ 17,900.0
Retail Automotive Dealership | Operating segments |  |  |
Revenues and segment income by reportable segment |  |  |
Revenues | 5,206.9 | 4,416.6 |
Segment income | 160.3 | 41.3 |
Retail Commercial Truck Dealership |  |  |
Revenues and segment income by reportable segment |  |  |
Revenues | 434.7 | 491.4 |
Retail Commercial Truck Dealership | Operating segments |  |  |
Revenues and segment income by reportable segment |  |  |
Revenues | 434.7 | 491.4 |
Segment income | 27.5 | 13.7 |
Other | Operating segments |  |  |
Revenues and segment income by reportable segment |  |  |
Revenues | 132.2 | 101.1 |
Segment income | 6.0 | 2.9 |
Non-Automotive Investments | Operating segments |  |  |
Revenues and segment income by reportable segment |  |  |
Segment income | $ 53.8 | $ 13.6 |

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