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DOCUMENT AND ENTITY INFORMATION - shares
9 Months Ended
Dec. 30, 2017
Feb. 02, 2018
Document And Entity Information [Abstract]    
Entity Registrant Name HAEMONETICS CORP  
Entity Central Index Key 0000313143  
Current Fiscal Year End Date --03-31  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Dec. 30, 2017  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   53,447,550