Board of Trustees (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended
Feb. 26, 2013 item
Board of Trustees
Number of independent trustees proposed to be removed under consent solicitation	2
Number of nominees for new trustee proposed by Related/Corvex in the event of the removal of independent trustees	7
Period from record date under consent solicitation	30 days
Percentage of common stock to be held to submit nominations for successor trustees to be elected	1.00%
Market value of common stock to be held to submit nominations for successor trustees to be elected	$ 2,000
Period for submission of nominations for successor trustees to be elected as eligible shareholders	1 year

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Represents the market value of common stock to be held to submit nominations for successor Trustees to be elected in the special meeting.

No definition available.

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Represents the number of independent trustees proposed to be removed under consent solicitation.

No definition available.

Name:	cwh_NumberOfIndependentTrusteesProposedToBeRemovedUnderConsentSolicitation
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Represents the number of proposed nominees for trustee in the event of the removal of independent trustees.

No definition available.

Name:	cwh_NumberOfProposedNomineesForTrusteeInEventRemovalOfIndependentTrustees
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Represents the percentage of common stock to be held to submit nominations for successor Trustees to be elected in special meeting.

No definition available.

Name:	cwh_PercentageOfCommonStockToBeHeldToSubmitNominationsForSuccessorTrusteesToBeElected
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Represents the period for submission of nominations for successor Trustees to be elected as eligible shareholders.

No definition available.

Name:	cwh_PeriodForSubmissionOfNominationsForSuccessorTrusteesToBeElectedAsEligibleShareholders
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Represents the period from the record date for the removal proposal under consent solicitation.

No definition available.

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