CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
Amortization of debt discounts, premiums and deferred financing fees	$ 1,005	$ 1,920	$ 1,751	$ 3,952

The component of interest expense representing the noncash expenses charged against earnings in the period to allocate debt discount and premium, and the costs to issue debt and obtain financing over the related instruments excluding discontinued operations.

No definition available.

Name:	cwh_AmortizationOfFinancingCostsAndDiscountsContinuingOperations
Namespace Prefix:	cwh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration