Business Combinations - Narrative (Details)	9 Months Ended
	Sep. 30, 2023 franchise center dealership	Sep. 30, 2022 franchise dealership
U.S.
Business Acquisition [Line Items]
Number of franchises acquired	2
Retail automotive dealership
Business Acquisition [Line Items]
Number of franchises acquired		19
Retail automotive dealership | U.K.
Business Acquisition [Line Items]
Number of franchises acquired		15
Retail automotive dealership | U.S.
Business Acquisition [Line Items]
Number of franchises acquired		4
Transolutions Truck Centres | Retail commercial truck dealership | Canada
Business Acquisition [Line Items]
Number of full service dealerships acquired | dealership	3	4
Number of service and parts centers acquired | center	2