Acquisitions and Divestitures (Details)		9 Months Ended
	Oct. 18, 2021 store	Sep. 30, 2021 store	Sep. 30, 2020 store franchises
Business Acquisition [Line Items]
Number of Franchises Terminated | franchises			1
Dealerships [Member]
Business Acquisition [Line Items]
Number of Businesses Acquired		11
Number of Business Divested		2	1
Collision Centers [Member]
Business Acquisition [Line Items]
Number of Businesses Acquired		1
Number of Business Divested		3
Collision Centers [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Number of Stores Announced to be Divested	17