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Financial Instruments and Fair Value Measurements (Assets Measured on a Nonrecurring Basis) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Franchise Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Franchise rights impairment	$ 0	$ 0
Nonrecurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of assets held and used	2,400,000	$ 2,200,000
Carrying value \| Continuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held for sale	$ 195,100,000		$ 21,300,000