v2.4.0.8
Document and Entity Information
3 Months Ended 6 Months Ended
Sep. 30, 2014
Sep. 30, 2014
Oct. 31, 2014
Entity Information [Line Items]      
Entity Registrant Name   STERIS CORP  
Entity Central Index Key   0000815065  
Document Type   10-Q  
Document Period End Date   Sep. 30, 2014  
Amendment Flag   false  
Document Fiscal Year Focus   2015  
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     59,421,562