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Intangible Franchise Rights and Goodwill - Narrative (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Countries and States [Line Items]
Goodwill impairment	$ 0		$ 10,700,000
Brazil
Countries and States [Line Items]
Goodwill impairment		$ 10,700,000	10,700,000	$ 0	$ 0
Franchise Rights
Countries and States [Line Items]
Impairment of intangibles			20,800,000	19,000,000.0	38,700,000
U.S.
Countries and States [Line Items]
Goodwill impairment			0
Impairment charges	9,700,000
Additions through acquisitions				13,400,000	38,300,000
U.S. | Franchise Rights
Countries and States [Line Items]
Additions through acquisitions				12,100,000
U.K.
Countries and States [Line Items]
Goodwill impairment			0
Additions through acquisitions				$ 5,600,000	$ 500,000
U.K. | Franchise Rights
Countries and States [Line Items]
Impairment of intangibles		11,100,000
Brazil
Countries and States [Line Items]
Goodwill impairment			10,700,000
Brazil | Franchise Rights
Countries and States [Line Items]
Impairment of intangibles		$ 100,000
Intangible assets balance	$ 0		$ 0

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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