Area of a real estate property, held for sale.

No definition available.

Name:	cwh_AreaOfRealEstatePropertyHeldForSale
Namespace Prefix:	cwh_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of buildings held for sale during the period.

+ References

No definition available.

+ Details

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

- Definition

This element represents the number of buildings held for use by the entity.

+ References

No definition available.

+ Details

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

- Definition

This element represents the number of properties sold or agreed to be sold by the entity.

+ References

No definition available.

+ Details

Name:	cwh_NumberOfPropertiesSold
Namespace Prefix:	cwh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of long-lived held and used properties held for sale during the period.

+ References

No definition available.

+ Details

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

- Definition

The number of long-lived held and used properties held for use.

+ References

No definition available.

+ Details

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

- Definition

Represents the reversal of amount of write-down of assets recognized in the income statement. Includes, but is not limited to, reversal of losses from tangible assets, intangible assets and goodwill.

+ References

No definition available.

+ Details

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

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of increase in real estate investments related to improvements for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section S99

-Paragraph 6

-Subparagraph (SX 210.5-04.(c) Schedule III)

-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 28

-Article 12

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph c

-Subparagraph Schedule III

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 970

-SubTopic 360

-Section S99

-Paragraph 1

-Subparagraph (SX 210.12-28.4)

-URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024

+ Details

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

- Details

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

Real Estate Properties (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended
	Jan. 31, 2013 property	Mar. 31, 2014 sqft	Mar. 31, 2013 sqft
Real estate properties information
Real estate improvements		$ 27,830
Number of Properties Sold	3
Property square feet		42,913,000	68,237,000
Reversal of loss on asset impairment		$ 4,761
CBD
Real estate properties information
Number of Real Estate Properties Held for Sale		1
Number of buildings held for sale		2
Number of Real Estate Properties Held for Use		2
Number of Buildings Held for Use		2
Suburban property
Real estate properties information
Number of Real Estate Properties Held for Sale		13
Number of buildings held for sale		41
Number of Real Estate Properties Held for Use		29
Number of Buildings Held for Use		65
CBD and suburban properties
Real estate properties information
Property square feet, held for sale		2,784,098
Property square feet		5,641,450