v2.4.0.8
Document and Entity Information
6 Months Ended
Sep. 30, 2015
Oct. 23, 2015
Entity Information [Line Items]    
Entity Registrant Name STERIS CORP  
Entity Central Index Key 0000815065  
Document Type 10-Q  
Document Period End Date Sep. 30, 2015  
Amendment Flag false  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --03-31  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   59,955,983