Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) store segment	Dec. 31, 2015 USD ($) segment	Dec. 31, 2014 USD ($) segment
Segments Information
Number of primary businesses | segment	2	2	2
Number of Camping World retail locations | store	122
Concentration of Credit Risk
Amount in excess of FDIC limits	$ 119,000,000	$ 90,800,000
Goodwill and Other Intangible Assets
Useful lives (in years)	5 years
Self-Insurance Program
Self insured claims liability	$ 11,300,000	7,800,000
Letters of credit	$ 10,800,000	10,400,000
Revenue Recognition
Lifetime memberships period	18 years
Advertising Expense
Advertising costs capitalized	$ 6,900,000	6,600,000
Advertising expenses	76,000,000	76,200,000	$ 65,000,000
Shipping and Handling Fees and Costs
Shipping, Handling and Transportation Costs	2,300,000	5,600,000	$ 10,700,000
New Accounting Pronouncements
Deferred tax asset, noncurrent	$ 125,878,000	6,234,000
Accounting Standards Update 2015-17 [Member] | Early adoption
New Accounting Pronouncements
Deferred tax asset, current		(123,000)
Deferred tax asset, noncurrent		123,000
New and used RVs, financing, and other ancillary services, protection plans, and products for the RV purchaser
Segments Information
Number of Camping World retail locations | store	105
FreedomRoads, LLC Floor Plan Facility
Self-Insurance Program
Letters of credit	$ 7,600,000	6,800,000
Building and improvements
Property and Equipment, net
Estimated useful lives	P40Y
Leasehold improvements | Minimum
Property and Equipment, net
Estimated useful lives	P3Y
Leasehold improvements | Maximum
Property and Equipment, net
Estimated useful lives	P40Y
Furniture and equipment | Minimum
Property and Equipment, net
Estimated useful lives	P3Y
Furniture and equipment | Maximum
Property and Equipment, net
Estimated useful lives	P12Y
Rental vehicles
Property and Equipment, net
Estimated useful lives	P8Y
Software | Minimum
Property and Equipment, net
Estimated useful lives	P3Y
Software | Maximum
Property and Equipment, net
Estimated useful lives	P5Y
Assets.
Advertising Expense
Advertising costs capitalized	$ 5,500,000	5,000,000
Deferred revenue
Advertising Expense
Advertising costs capitalized	$ 1,400,000	$ 1,600,000
CWGS, LLC
Segments Information
Ownership interest	22.60%