GOODWILL AND INTANGIBLE ASSETS Schedule of Goodwill (Details) - USD ($)	12 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Apr. 01, 2017
Goodwill [Roll Forward]
Goodwill, carrying amount	$ 211,395,000	$ 210,841,000
Impairment charge	0	0	$ (57,000,000)
Transfer of goodwill between segments	0
Currency translation	(576,000)	554,000
Goodwill, carrying amount	210,819,000	211,395,000	210,841,000
Japan
Goodwill [Roll Forward]
Goodwill, carrying amount	25,042,000	24,880,000
Transfer of goodwill between segments	0
Currency translation	(168,000)	162,000
Goodwill, carrying amount	24,874,000	25,042,000	24,880,000
EMEA
Goodwill [Roll Forward]
Goodwill, carrying amount	20,677,000	20,543,000
Transfer of goodwill between segments	(1,084,000)
Currency translation	(139,000)	134,000
Goodwill, carrying amount	19,454,000	20,677,000	20,543,000
North America Plasma
Goodwill [Roll Forward]
Goodwill, carrying amount	26,415,000	26,415,000
Transfer of goodwill between segments	0
Currency translation	0	0
Goodwill, carrying amount	26,415,000	26,415,000	26,415,000
All Other
Goodwill [Roll Forward]
Goodwill, carrying amount	139,261,000	139,003,000
Transfer of goodwill between segments	1,084,000
Currency translation	(269,000)	258,000
Goodwill, carrying amount	$ 140,076,000	$ 139,261,000	$ 139,003,000