Document and Entity Information	6 Months Ended
	Sep. 30, 2014	Oct. 27, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	Prestige Brands Holdings, Inc.
Entity Central Index Key	0001295947
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2014
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		52,172,727