Document and Entity Information - USD ($)	12 Months Ended
	Mar. 31, 2017	May 12, 2017	Sep. 30, 2016
Document and Entity Information
Entity Registrant Name	DECKERS OUTDOOR CORP
Entity Central Index Key	0000910521
Document Type	10-K
Document Period End Date	Mar. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 1,897,849,329
Entity Common Stock, Shares Outstanding		31,990,065
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY