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Goodwill and Franchise Value - Goodwill (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Dec. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2008
Goodwill [Roll Forward] |  |  |  |  |
Balance |  |  | $ 593.0 | $ 454.6 |
Additions through acquisitions |  |  | 395.5 | 144.9 |
Reductions through divestitures |  |  | (11.2) | (3.0) |
Reductions from impairments | $ (3.5) | $ (1.7) |  | (3.5) |
Balance |  | 454.6 | 977.3 | 593.0 |
Accumulated impairment losses |  |  |  |  | $ 299.3
Additions through acquisitions |  |  | 395.5 | 144.9 |
Domestic |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Balance |  |  | 204.5 | 171.8 |
Additions through acquisitions |  |  | 101.0 | 33.3 |
Reductions through divestitures |  |  | (1.5) | (0.1) |
Reductions from impairments |  |  |  | (0.5) |
Balance |  | 171.8 | 304.0 | 204.5 |
Additions through acquisitions |  |  | 101.0 | 33.3 |
Import |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Balance |  |  | 287.9 | 197.3 |
Additions through acquisitions |  |  | 188.7 | 94.3 |
Reductions through divestitures |  |  | (8.4) | (0.7) |
Reductions from impairments |  |  |  | (3.0) |
Balance |  | 197.3 | 468.2 | 287.9 |
Additions through acquisitions |  |  | 188.7 | 94.3 |
Luxury |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Balance |  |  | 100.6 | 85.5 |
Additions through acquisitions |  |  | 105.8 | 17.3 |
Reductions through divestitures |  |  | (1.3) | (2.2) |
Reductions from impairments |  |  |  | 0.0 |
Balance |  | $ 85.5 | 205.1 | 100.6 |
Additions through acquisitions |  |  | $ 105.8 | $ 17.3 |

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