Represents the monthly base rent payments.

No definition available.

Name:	cwh_BaseRentAmount
Namespace Prefix:	cwh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Cash payments to lessor's for common area maintenance on operating leases.

+ References

No definition available.

+ Details

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Namespace Prefix:	cwh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the economic interest in an entity.

+ References

No definition available.

+ Details

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Namespace Prefix:	cwh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	cwh_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Cash payments to lessor's for use of assets under operating leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- Details

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- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=cwh_PreciseGraphixMember
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Balance Type:
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- Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=cwh_RelatedPartyLeaseAgreementMember
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Data Type:	na
Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_ChiefExecutiveOfficerMember
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Data Type:	na
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Balance Type:
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Related Party Transactions (Details) - USD ($)	3 Months Ended		6 Months Ended
Related Party Transactions (Details) - USD ($)	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Stephen Adams
Related party transactions
Related party expense			$ 200,000	$ 0
Payments to related party for purchasing advertising services	$ 100,000	$ 0
Kaplan, Strangis and Kaplan PA
Related party transactions
Related party expense			100,000	0
Related Party Agreement \| Precise Graphix
Related party transactions
Related party expense	2,100,000	900,000	3,700,000	1,200,000
FreedomRoads \| Lease Agreement \| Managers and Officers
Related party transactions
Related party expense	500,000	500,000	$ 900,000	900,000
FreedomRoads \| Lease Agreement \| Mr. Lemonis \| Original Lease
Related party transactions
Term of lease			132 months
Base rent	29,000		$ 29,000
Lease payments	154,000	176,000	332,000	352,000
Common area maintenance payments	79,000	79,000	$ 157,000	158,000
FreedomRoads \| Lease Agreement \| Mr. Lemonis \| Expansion Lease
Related party transactions
Term of lease			132 months
Base rent	2,500		$ 2,500
Lease payments	$ 8,000	$ 8,000	$ 17,000	17,000
Mr. Lemonis \| Precise Graphix
Related party transactions
Economic interest (as a percent)			33.00%
Mr. Lemonis \| JD Custom \| Mr. Lemonis
Related party transactions
Related party expense			$ 300,000	$ 0
Economic interest (as a percent)			52.00%
Stephen Adams \| Adams Radio \| Stephen Adams
Related party transactions
Indirect interest	90.00%		90.00%