Summary of Significant Accounting Policies - Reclassifications and Revisions (Details) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Restatement
Stockholders equity	$ 25,613,000	$ 7,634,000	$ 100,759,000	$ 67,173,000	$ 25,613,000	$ 100,759,000	$ 32,917,000	$ 71,800,000	$ 71,763,000
Revenue:
Revenue	1,474,347,000		1,441,477,000		2,539,116,000	2,500,138,000
Costs applicable to revenue:
Costs applicable to revenue	1,064,357,000		1,029,034,000		1,830,799,000	1,785,802,000
Selling, general, and administrative	303,366,000		283,095,000		571,431,000	529,408,000
Total operating expenses	319,686,000		294,738,000		601,131,000	550,960,000
Income from operations	90,304,000		117,705,000		107,186,000	163,376,000
Other income (expense)			(2,000)			(2,000)
Income before income taxes	60,824,000		91,394,000		56,930,000	111,807,000
Income tax expense	(8,201,000)		(14,262,000)		(31,114,000)	(21,127,000)
Net income (loss)	52,623,000	(26,807,000)	77,132,000	13,548,000	25,816,000	90,680,000
Net income attributable to non-controlling interests	(34,606,000)		(52,350,000)		(27,194,000)	(64,077,000)
Net income attributable to Camping World Holdings, Inc.	$ 18,017,000		$ 24,782,000		$ (1,378,000)	$ 26,603,000
Income (loss) earnings per share of Class A common stock:
Basic	$ 0.48		$ 0.67		$ (0.04)	$ 0.72
Diluted	$ 0.46		$ 0.67		$ (0.04)	$ 0.72
Effect of the error corrections on the consolidated statements of cash flows
Net income	$ 52,623,000	(26,807,000)	$ 77,132,000	13,548,000	$ 25,816,000	$ 90,680,000
Deferred income taxes					16,615,000	4,765,000
Receivables and contracts in transit					(79,823,000)	(86,329,000)
Inventories					25,752,000	(35,707,000)
Prepaid expenses and other assets					7,082,000	(3,437,000)
Accounts payable and other accrued expenses					80,744,000	97,442,000
Deferred revenue and gains					1,088,000	8,362,000
Other					719,000	8,791,000
Net cash provided by operating activities					100,179,000	109,120,000
Purchases of property and equipment					(27,848,000)	(83,685,000)
Net cash used in investing activities					(80,522,000)	(244,588,000)
Class A common stock
Restatement
Stockholders equity	$ 373,000	$ 372,000	370,000	$ 369,000	$ 373,000	370,000	$ 372,000		$ 367,000
Costs applicable to revenue:
Income before income taxes			(91,394)			(111,807,000)
Income tax expense			$ (14,262)			$ (21,127,000)
Income (loss) earnings per share of Class A common stock:
Basic	$ 0.48		$ 0.67		$ (0.04)	$ 0.72
Diluted	$ 0.46		$ 0.67		$ (0.04)	$ 0.72
Good Sam Club
Revenue:
Revenue	$ 12,383,000		$ 10,410,000		$ 23,834,000	$ 19,393,000
Costs applicable to revenue:
Costs applicable to revenue			3,107,000			5,436,000
Products, service and other
Revenue:
Revenue	264,426,000		250,359,000		469,302,000	414,511,000
Costs applicable to revenue:
Costs applicable to revenue			148,066,000			243,868,000
Finance and insurance, net
Revenue:
Revenue	$ 128,225,000		120,205,000		$ 220,116,000	209,305,000
Good Sam services and plans
Costs applicable to revenue:
Costs applicable to revenue			17,661,000			38,121,000
As Reported
Restatement
Stockholders equity								90,800,000
Revenue:
Revenue			1,445,176,000			2,506,742,000
Costs applicable to revenue:
Costs applicable to revenue			1,029,012,000			1,785,802,000
Selling, general, and administrative			284,295,000			529,409,000
Total operating expenses			295,938,000			550,961,000
Income from operations			120,226,000			169,979,000
Net income (loss)			81,815,000			99,091,000
Net income attributable to non-controlling interests			(53,784,000)			(67,879,000)
Net income attributable to Camping World Holdings, Inc.			28,031,000			31,212,000
Effect of the error corrections on the consolidated statements of cash flows
Net income			81,815,000			99,091,000
Deferred income taxes						2,959,000
Receivables and contracts in transit						(89,379,000)
Inventories						(30,441,000)
Prepaid expenses and other assets						(8,703,000)
Accounts payable and other accrued expenses						99,699,000
Deferred revenue and gains						6,322,000
Other						1,894,000
Net cash provided by operating activities						105,995,000
Purchases of property and equipment						(80,574,000)
Net cash used in investing activities						(241,477,000)
As Reported | Class A common stock
Costs applicable to revenue:
Income before income taxes			(93,917)			(118,412,000)
Income tax expense			$ (12,102)			$ (19,321,000)
Income (loss) earnings per share of Class A common stock:
Basic			$ 0.76			$ 0.85
Diluted			$ 0.72			$ 0.81
As Reported | Good Sam Club
Costs applicable to revenue:
Costs applicable to revenue			$ 3,191,000			$ 5,493,000
As Reported | Products, service and other
Revenue:
Revenue			250,203,000			414,511,000
Costs applicable to revenue:
Costs applicable to revenue			147,980,000			243,868,000
As Reported | Finance and insurance, net
Revenue:
Revenue			124,060,000			215,909,000
As Reported | Good Sam services and plans
Costs applicable to revenue:
Costs applicable to revenue			17,641,000			38,064,000
Adjustment
Restatement
Stockholders equity			(10,200,000)			(10,200,000)		$ (19,100,000)
Revenue:
Revenue			(3,699,000)			(6,604,000)
Costs applicable to revenue:
Costs applicable to revenue			22,000
Selling, general, and administrative			(1,200,000)			(1,000)
Total operating expenses			(1,200,000)			(1,000)
Income from operations			(2,521,000)			(6,603,000)
Other income (expense)			(2,000)			(2,000)
Net income (loss)			(4,683,000)			(8,411,000)
Net income attributable to non-controlling interests			1,434,000			3,802,000
Net income attributable to Camping World Holdings, Inc.			(3,249,000)			(4,609,000)
Effect of the error corrections on the consolidated statements of cash flows
Net income			(4,683,000)			(8,411,000)
Deferred income taxes						1,806,000
Receivables and contracts in transit						3,050,000
Inventories						(5,266,000)
Prepaid expenses and other assets						5,266,000
Accounts payable and other accrued expenses						(2,257,000)
Deferred revenue and gains						2,040,000
Other						6,897,000
Net cash provided by operating activities						3,125,000
Purchases of property and equipment						(3,111,000)
Net cash used in investing activities						(3,111,000)
Adjustment | Class A common stock
Costs applicable to revenue:
Income before income taxes			2,523,000			6,605,000
Income tax expense			$ (2,160,000)			$ (1,806,000)
Income (loss) earnings per share of Class A common stock:
Basic			$ (0.09)			$ (0.13)
Diluted			$ (0.05)			$ (0.09)
Adjustment | Good Sam Club
Costs applicable to revenue:
Costs applicable to revenue			$ (84,000)			$ (57,000)
Adjustment | Products, service and other
Revenue:
Revenue			156,000
Costs applicable to revenue:
Costs applicable to revenue			86,000
Adjustment | Finance and insurance, net
Revenue:
Revenue			(3,855,000)			(6,604,000)
Adjustment | Good Sam services and plans
Costs applicable to revenue:
Costs applicable to revenue			$ 20,000			$ 57,000