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Goodwill and Other Intangible Assets - Goodwill and Intangible Assets (Details) - USD ($) $ in Millions | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Goodwill [Line Items] |  |
Goodwill | $ 1,291.9 | $ 1,239.9
Accumulated impairment loss | 513.4 | 513.4
Finite-lived: |  |
Gross | 461.4 | 443.4
Accumulated Amortization | 322.0 | 299.8
Net | 139.4 | 143.6
Indefinite-lived: |  |
Gross | 150.9 | 150.8
Net | 150.9 | 150.8
Total intangible assets |  |
Gross | 612.3 | 594.2
Accumulated Amortization | 322.0 | 299.8
Net | 290.3 | 294.4
Intangible Assets, Future Amortization Expense by Fiscal Year [Abstract] |  |
Estimated amortization expense, remainder of 2017 | 17.5 |
Estimated amortization expense, 2018 | 32.1 |
Estimated amortization expense, 2019 | 27.8 |
Estimated amortization expense, 2020 | 22.7 |
Estimated amortization expense, 2021 | 12.0 |
Estimated amortization expense, 2022 | 8.7 |
Tradenames |  |
Indefinite-lived: |  |
Gross | 52.0 | 52.0
Net | 52.0 | 52.0
Accumulated impairment loss | 139.5 | 139.5
Reacquired franchise rights |  |
Indefinite-lived: |  |
Gross | 98.9 | 98.8
Net | 98.9 | 98.8
Customer relationships |  |
Finite-lived: |  |
Gross | 442.6 | 426.2
Accumulated Amortization | 308.7 | 287.2
Net | 133.9 | 139.0
Other |  |
Finite-lived: |  |
Gross | 18.8 | 17.2
Accumulated Amortization | 13.3 | 12.6
Net | $ 5.5 | $ 4.6

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