Acquisitions (Details) - store	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Collision Centers [Member]
Business Acquisition [Line Items]
Number of stores purchased		2	7
Parts Distribution Centers [Member]
Business Acquisition [Line Items]
Number of stores purchased	2
Dealerships [Member]
Business Acquisition [Line Items]
Number of stores purchased		1	1