Summary of Significant Accounting Policies - Description of Business (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2021 location segment	Jun. 30, 2021 location	Dec. 31, 2020
Segments Information
Number of reportable segments | segment	2
Number of stores, beginning of period		164
Opened		22
Closed/divested		(1)
Temporarily closed		(1)
Reopened		3
Number of stores, end of period	187	187
RV Dealerships
Segments Information
Number of stores, beginning of period		152
Opened		22
Temporarily closed		(1)
Reopened		3
Number of stores, end of period	176	176
RV Service And Retail Centers
Segments Information
Number of stores, beginning of period		10
Number of stores, end of period	10	10
Other Retail Stores
Segments Information
Number of stores, beginning of period		2
Closed/divested		(1)
Number of stores, end of period	1	1
CWH | CWGS, LLC
Segments Information
Ownership interest	51.60%		47.40%