DOCUMENT AND ENTITY INFORMATION - shares	3 Months Ended
	Jul. 01, 2017	Aug. 03, 2017
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	Jul. 01, 2017
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		52,606,339