Revenue Recognition (Estimated Revenue Expected to be Recognized In the Future) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Vehicle maintenance program, contract term	5 years
Revenue expected to be recognized on VCP contracts sold as of period end	$ 108.5
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue expected to be recognized on VCP contracts sold as of period end	$ 37.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction, period	2 years
Revenue expected to be recognized on VCP contracts sold as of period end	$ 53.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction, period	2 years
Revenue expected to be recognized on VCP contracts sold as of period end	$ 18.3