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INTANGIBLE FRANCHISE RIGHTS AND GOODWILL - Narrative (Details) | 12 Months Ended
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Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Income Approach |  |  |
Countries and States |  |  |
Goodwill fair value approach | 0.80 |  |
Market Approach |  |  |
Countries and States |  |  |
Goodwill fair value approach | 0.20 |  |
Intangible Franchise Rights |  |  |
Countries and States |  |  |
Impairment of intangible assets | $ 0 | $ 20,700,000 | $ 19,000,000
U.S. |  |  |
Countries and States |  |  |
Impairment of intangible assets |  | 9,700,000 |
Additions through acquisitions | 161,200,000 |  |
U.S. | Intangible Franchise Rights |  |  |
Countries and States |  |  |
Impairment of intangible assets |  |  | 13,400,000
U.K. |  |  |
Countries and States |  |  |
Impairment of intangible assets |  | $ 11,100,000 |
Additions through acquisitions | $ 1,200,000 |  |
U.K. | Intangible Franchise Rights |  |  |
Countries and States |  |  |
Impairment of intangible assets |  |  | $ 5,600,000

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