Represents the number of stores related to marine and water sports enthusiasts.

No definition available.

Name:	cwh_NumberOfStoresRelatedToMarineAndWatersportsProducts
Namespace Prefix:	cwh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of stores related to outdoor products and services.

+ References

No definition available.

+ Details

Name:	cwh_NumberOfStoresRelatedToOutdoorProductsAndServices
Namespace Prefix:	cwh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of stores related to RV purchasers and outdoor enthusiasts.

+ References

No definition available.

+ Details

Name:	cwh_NumberOfStoresRelatedToRvPurchasersAndOutdoorEnthusiasts
Namespace Prefix:	cwh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of stores related to skiing, snowboarding, and skateboarding products.

+ References

No definition available.

+ Details

Name:	cwh_NumberOfStoresRelatedToSkiingSnowboardingAndSkateboardingProducts
Namespace Prefix:	cwh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of stores related to skiing, snowboarding, bicycling and skateboarding products.

+ References

No definition available.

+ Details

Name:	cwh_NumberOfStoresRelatedToSkiingSnowboardingBicyclingAndSkateboardingProducts
Namespace Prefix:	cwh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

+ Details

Name:	us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of stores.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfStores
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_ProductOrServiceAxis=cwh_NewAndUsedRecreationalVehiclesFinancingAndOtherAncillaryServicesProtectionPlansAndProductsForRecreationalVehiclePurchaserMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=cwh_GanderMountainMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=cwh_UncleDanSLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=cwh_CampingWorldHoldingIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OwnershipAxis=cwh_CwAndItsSubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Summary of Significant Accounting Policies - Description of Business (Details)		12 Months Ended
	Oct. 06, 2016	Dec. 31, 2017 segment store	Dec. 31, 2016 segment	Dec. 31, 2015 segment
Segments Information
Number of primary businesses \| segment		2	2	2
Number of Camping World retail locations		140
Number of locations related to marine and water sports products		2
Number of locations related to skiing, snowboarding, bicycling and skateboarding products		2
Number of stores related to skiing, snowboarding, and skateboarding products		1
New and used RVs, financing, and other ancillary services, protection plans, and products for the RV purchaser
Segments Information
Number of locations related to RV purchasers and outdoor enthusiasts		124
Gander Mountain
Segments Information
Number of locations related to outdoor products and services		2
Uncle Dan's
Segments Information
Number of locations related to outdoor products and services		5
CWH \| CWGS, LLC
Segments Information
Ownership interest	22.60%	41.50%	22.60%