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Goodwill and Franchise Value - Schedule of Franchise Value (Details) - Franchise Rights - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Indefinite-lived Intangible Assets [Roll Forward] |  |
Beginning balance | $ 1,856.2 | $ 799.1
Additions through acquisitions | 556.5 | 1,088.4
Reductions through divestitures | (14.5) | (33.6)
Currency translation | 4.0 | 2.3
Ending balance | 2,402.2 | 1,856.2
2021 Acquisition |  |
Indefinite-lived Intangible Assets [Roll Forward] |  |
Adjustments to purchase price allocations |  | $ 1,100.0
2022 Acquisition |  |
Indefinite-lived Intangible Assets [Roll Forward] |  |
Adjustments to purchase price allocations | 363.1 |
2023 Acquisition |  |
Indefinite-lived Intangible Assets [Roll Forward] |  |
Adjustments to purchase price allocations | $ 193.4 |

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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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