Commitments and Contingencies (Details 2)	9 Months Ended
Sep. 30, 2012
Commitments and Contingencies
Minimum percentage used to measure tax benefit of uncertain tax position	50.00%

Represents the minimum percentage of an income tax position likely of being realized used to determine whether income tax position will be recognized.

No definition available.

Name:	deck_MinimumPercentageUsedToMeasureTaxBenefitOfUncertainTaxPosition
Namespace Prefix:	deck_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration