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Business and Summary of Significant Accounting Policies - Goodwill and Intangible Franchise Rights (Details)	3 Months Ended		12 Months Ended
	Dec. 31, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) geographic_region	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Accounting Policies [Abstract]
Number of geographic regions | geographic_region			3
Segment Reporting Information [Line Items]
Goodwill impairment	$ 0		$ 10,700,000
Valuation, Income Approach [Member]
Segment Reporting Information [Line Items]
Goodwill fair value approach	0.80		0.80
Valuation, Market Approach [Member]
Segment Reporting Information [Line Items]
Goodwill fair value approach	0.20		0.20
Brazil
Segment Reporting Information [Line Items]
Goodwill impairment		$ 10,700,000	$ 10,700,000	$ 0	$ 0
Franchise Rights
Segment Reporting Information [Line Items]
Impairment of intangibles			$ 20,800,000	$ 19,000,000.0	$ 38,700,000
Measurement Input, Discount Rate [Member] | U.S.
Segment Reporting Information [Line Items]
WACC applied	0.11		0.11
Measurement Input, Discount Rate [Member] | Brazil
Segment Reporting Information [Line Items]
WACC applied	0.16		0.16
Measurement Input, Discount Rate [Member] | U.K.
Segment Reporting Information [Line Items]
WACC applied	0.13		0.13

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Goodwill, Measurement Input

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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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