Leases and Other Commitments - Additional Information (Details)	12 Months Ended
Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Maximum indemnity period of claims related to intellectual property	5 years

Represents the period of indemnity to licensees, distributors and promotional partners in connection with the claims related to use of the company's intellectual property (in years).

No definition available.

Name:	deck_MaximumIndemnityPeriodofClaimsRelatedtoIntellectualProperty
Namespace Prefix:	deck_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration