SEGMENT AND ENTERPRISE-WIDE INFORMATION (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2018 USD ($) unit	Jul. 01, 2017 USD ($)
Segment Reporting [Abstract]
Number of business units | unit	3
Segment Reporting Information [Line Items]
Net revenues before foreign exchange impact	$ 229,278	$ 213,950
Effect of exchange rates	69	(2,999)
Net revenues	229,347	210,951
Effect of exchange rates	3,055	(2,201)
Restructuring and turnaround costs	(3,349)	(2,483)
Deal amortization	(6,300)	(6,491)
Asset impairments	(21,170)	0
Accelerated depreciation	(3,939)	0
Legal charges	(675)	0
Operating income	5,293	16,611
Plasma
Segment Reporting Information [Line Items]
Net revenues	116,903	101,507
Blood Center
Segment Reporting Information [Line Items]
Net revenues	64,483	65,565
Hospital
Segment Reporting Information [Line Items]
Net revenues	47,961	43,879
United States
Segment Reporting Information [Line Items]
Net revenues	142,140	131,052
Japan
Segment Reporting Information [Line Items]
Net revenues	17,389	14,916
Europe
Segment Reporting Information [Line Items]
Net revenues	39,002	37,222
Asia
Segment Reporting Information [Line Items]
Net revenues	29,395	25,940
Other
Segment Reporting Information [Line Items]
Net revenues	1,421	1,821
Japan
Segment Reporting Information [Line Items]
Net revenues before foreign exchange impact	16,604	15,232
EMEA
Segment Reporting Information [Line Items]
Net revenues before foreign exchange impact	41,288	40,439
North America Plasma
Segment Reporting Information [Line Items]
Net revenues before foreign exchange impact	91,574	77,536
All Other
Segment Reporting Information [Line Items]
Net revenues before foreign exchange impact	79,812	80,743
Operating Segments
Segment Reporting Information [Line Items]
Operating income	91,944	75,836
Operating Segments | Japan
Segment Reporting Information [Line Items]
Operating income	8,267	7,467
Operating Segments | EMEA
Segment Reporting Information [Line Items]
Operating income	12,040	10,498
Operating Segments | North America Plasma
Segment Reporting Information [Line Items]
Operating income	38,596	27,200
Operating Segments | All Other
Segment Reporting Information [Line Items]
Operating income	33,041	30,671
Corporate operating expenses
Segment Reporting Information [Line Items]
Corporate operating expenses	$ (54,273)	$ (48,050)