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GOODWILL AND INTANGIBLE FRANCHISE RIGHTS - Franchise Rights (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 | Jun. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Indefinite-lived Intangible Assets [Roll Forward] |  |  |  |  |
Asset impairments |  |  | $ (149.5) | $ (117.2) | $ 0.0
Franchise rights |  |  |  |  |
Indefinite-lived Intangible Assets [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 2,095.8 | 1,800.1 |
Reclassified from assets held for sale |  |  | 71.9 |  |
Acquisitions - measurement-period adjustments |  |  | 26.7 | 429.0 |
Asset impairments | $ (14.1) | $ (134.1) | (148.2) | (102.3) |
Reclassified to assets held for sale |  |  | (6.5) | 31.0 |
Divestitures |  |  | (74.6) |  |
Ending balance | $ 1,911.7 |  | $ 1,911.7 | $ 2,095.8 | $ 1,800.1

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- Definition Impairment of Intangible Assets, Reclassified to assets held for sale + References No definition available. + Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-3 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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