Summary of Significant Accounting Policies - Description of Business (Details) $ in Thousands	3 Months Ended		12 Months Ended	15 Months Ended
	Mar. 31, 2020 USD ($) location segment	Mar. 31, 2019 location	Dec. 31, 2019 USD ($) location	Mar. 31, 2020 location
Segments Information
Number of reportable segments | segment	2
Number of stores	168	226		168
Number of stores, beginning of period
Number of locations opened				10
Closed/divested				(64)
Temporarily closed				(4)
Number of stores, end of period	168	226		168
RV Dealerships
Segments Information
Number of stores	157	147		157
Number of stores, beginning of period
Number of locations opened				10
Closed/divested				(6)
Number of locations converted				6
Number of stores, end of period	157	147		157
RV Service And Retail Centers
Segments Information
Number of stores	10	12		10
Number of stores, beginning of period
Closed/divested				(2)
Number of stores, end of period	10	12		10
Other Retail Stores
Segments Information
Number of stores	1	67		1
Number of stores, beginning of period
Closed/divested				(56)
Temporarily closed				(4)
Number of locations converted				(6)
Number of stores, end of period	1	67		1
CWH | CWGS, LLC
Segments Information
Ownership interest	42.10%	42.00%	42.00%
2019 Strategic Shift
Segments Information
Liquidation of inventory | $	$ 6,871
2019 Strategic Shift | Non RV Retail Stores
Segments Information
Closed/divested			34
2019 Strategic Shift | Incremental inventory reserve charges | Non RV Retail Stores
Segments Information
Liquidation of inventory | $			$ 108,000