Summary of Significant Accounting Policies - Reclassifications and Revisions (Details) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Restatement
Stockholders equity	$ (65,605,000)	$ 25,613,000	$ 7,634,000	$ 108,575,000	$ 100,759,000	$ 67,173,000	$ (65,605,000)	$ 108,575,000	$ 32,917,000	$ 71,800,000	$ 71,763,000
Revenue:
Revenue	1,387,972,000			1,309,486,000			3,927,088,000	3,809,624,000
Costs applicable to revenue:
Costs applicable to revenue	1,049,499,000			936,472,000			2,880,298,000	2,722,274,000
Selling, general, and administrative	299,564,000			278,330,000			870,995,000	807,738,000
Total operating expenses	370,780,000			292,352,000			971,911,000	843,312,000
Income from operations	(32,307,000)			80,662,000			74,879,000	244,038,000
Other income (expense)				2,000
Income before income taxes	(58,880,000)			56,055,000			(1,950,000)	167,862,000
Income tax expense	(6,383,000)			(9,900,000)			(37,497,000)	(31,027,000)
Net income (loss)	(65,263,000)	52,623,000	(26,807,000)	46,155,000	77,132,000	13,548,000	(39,447,000)	136,835,000
Net income attributable to non-controlling interests	34,571,000			(32,032,000)			7,377,000	(96,109,000)
Net income attributable to Camping World Holdings, Inc.	$ (30,692,000)			$ 14,123,000			$ (32,070,000)	$ 40,726,000
Income (loss) earnings per share of Class A common stock:
Basic	$ (0.82)			$ 0.38			$ (0.86)	$ 1.10
Diluted	$ (0.82)			$ 0.38			$ (0.86)	$ 1.10
Effect of the error corrections on the consolidated statements of cash flows
Net (loss) income	$ (65,263,000)	52,623,000	(26,807,000)	$ 46,155,000	77,132,000	13,548,000	$ (39,447,000)	$ 136,835,000
Deferred income taxes							18,620,000	7,621,000
Receivables and contracts in transit							(37,121,000)	(56,118,000)
Inventories							195,137,000	(42,630,000)
Prepaid expenses and other assets							12,634,000	5,496,000
Accounts payable and other accrued expenses							59,220,000	124,442,000
Deferred revenue and gains							9,060,000	19,328,000
Other							7,477,000	13,040,000
Net cash provided by operating activities							323,141,000	254,073,000
Purchases of property and equipment							(45,039,000)	(108,422,000)
Net cash used in investing activities							(91,691,000)	(289,798,000)
Class A common stock
Restatement
Stockholders equity	$ 374,000	$ 373,000	$ 372,000	371,000	370,000	$ 369,000	$ 374,000	371,000	$ 372,000		$ 367,000
Costs applicable to revenue:
Income before income taxes				(56,055)				(167,862,000)
Income tax expense				$ (9,900)				$ (31,027,000)
Income (loss) earnings per share of Class A common stock:
Basic	$ (0.82)			$ 0.38			$ (0.86)	$ 1.10
Diluted	$ (0.82)			$ 0.38			$ (0.86)	$ 1.10
Good Sam Club
Revenue:
Revenue	$ 12,633,000			$ 10,733,000			$ 36,467,000	$ 30,126,000
Costs applicable to revenue:
Costs applicable to revenue				2,970,000				8,406,000
Products, service and other
Revenue:
Revenue	290,771,000			256,150,000			760,073,000	670,661,000
Finance and insurance, net
Revenue:
Revenue	$ 114,466,000			106,218,000			$ 334,582,000	315,523,000
Good Sam services and plans
Costs applicable to revenue:
Costs applicable to revenue				18,529,000				56,650,000
As Reported
Restatement
Stockholders equity										90,800,000
Revenue:
Revenue				1,312,727,000				3,819,469,000
Costs applicable to revenue:
Income from operations				83,903,000				253,882,000
Net income (loss)				47,909,000				147,000,000
Net income attributable to non-controlling interests				(33,893,000)				(101,772,000)
Net income attributable to Camping World Holdings, Inc.				14,016,000				45,228,000
Effect of the error corrections on the consolidated statements of cash flows
Net (loss) income				47,909,000				147,000,000
Deferred income taxes								7,300,000
Receivables and contracts in transit								(56,321,000)
Inventories								(37,364,000)
Prepaid expenses and other assets								230,000
Accounts payable and other accrued expenses								122,483,000
Deferred revenue and gains								17,288,000
Other								4,383,000
Net cash provided by operating activities								251,058,000
Purchases of property and equipment								(105,408,000)
Net cash used in investing activities								(286,784,000)
As Reported | Class A common stock
Costs applicable to revenue:
Income before income taxes				(59,294)				(177,706,000)
Income tax expense				$ (11,385)				$ (30,706,000)
Income (loss) earnings per share of Class A common stock:
Basic				$ 0.38				$ 1.22
Diluted				$ 0.38				$ 1.20
As Reported | Good Sam Club
Costs applicable to revenue:
Costs applicable to revenue				$ 2,913,000				$ 8,406,000
As Reported | Finance and insurance, net
Revenue:
Revenue				109,459,000				325,368,000
As Reported | Good Sam services and plans
Costs applicable to revenue:
Costs applicable to revenue				18,586,000				56,650,000
Adjustment
Restatement
Stockholders equity				8,700,000	$ (10,200,000)			8,700,000		$ (19,100,000)
Revenue:
Revenue				(3,241,000)				(9,845,000)
Costs applicable to revenue:
Income from operations				(3,241,000)				(9,844,000)
Other income (expense)				2,000
Net income (loss)				(1,754,000)				(10,165,000)
Net income attributable to non-controlling interests				1,861,000				5,663,000
Net income attributable to Camping World Holdings, Inc.				107,000				(4,502,000)
Effect of the error corrections on the consolidated statements of cash flows
Net (loss) income				(1,754,000)				(10,165,000)
Deferred income taxes								321,000
Receivables and contracts in transit								203,000
Inventories								(5,266,000)
Prepaid expenses and other assets								5,266,000
Accounts payable and other accrued expenses								1,959,000
Deferred revenue and gains								2,040,000
Other								8,657,000
Net cash provided by operating activities								3,015,000
Purchases of property and equipment								(3,014,000)
Net cash used in investing activities								(3,014,000)
Adjustment | Class A common stock
Costs applicable to revenue:
Income before income taxes				3,239,000				9,844,000
Income tax expense				1,485,000				$ (321,000)
Income (loss) earnings per share of Class A common stock:
Basic								$ (0.12)
Diluted								$ (0.10)
Adjustment | Good Sam Club
Costs applicable to revenue:
Costs applicable to revenue				57,000
Adjustment | Finance and insurance, net
Revenue:
Revenue				(3,241,000)				$ (9,845,000)
Adjustment | Good Sam services and plans
Costs applicable to revenue:
Costs applicable to revenue				$ (57,000)