SEGMENT AND ENTERPRISE-WIDE INFORMATION (Details) $ in Thousands	3 Months Ended
	Jun. 29, 2019 USD ($) segment	Jun. 30, 2018 USD ($)	Mar. 30, 2019 USD ($)
Segment Reporting [Abstract]
Number of business units | segment	3
Segment Reporting Information [Line Items]
Net revenues before foreign exchange impact	$ 235,946	$ 224,953
Effect of exchange rates	(2,361)	69
Net revenues	238,451	229,347
Effect of exchange rates	2,769	3,055
Impairment of assets and related costs	(51,166)	(21,170)
Amortization	5,974	6,300
PCS2 accelerated depreciation and related costs	(5,528)	(3,939)
Restructuring and turnaround costs	(2,027)	(3,349)
Other	(33)	(675)
Operating (loss) income	(13,302)	5,293
Total long-lived assets	276,748		$ 343,979
United States
Segment Reporting Information [Line Items]
Net revenues	156,375	142,140
Japan
Segment Reporting Information [Line Items]
Net revenues	15,467	17,389
Europe
Segment Reporting Information [Line Items]
Net revenues	36,753	39,002
Asia
Segment Reporting Information [Line Items]
Net revenues	28,641	29,395
Other
Segment Reporting Information [Line Items]
Net revenues	1,215	1,421
Service
Segment Reporting Information [Line Items]
Net revenues before foreign exchange impact	4,866	4,325
Plasma products and services
Segment Reporting Information [Line Items]
Net revenues	129,745	116,903
Blood Center products and services
Segment Reporting Information [Line Items]
Net revenues	59,907	64,483
Hospital products and services
Segment Reporting Information [Line Items]
Net revenues	48,799	47,961
Plasma
Segment Reporting Information [Line Items]
Net revenues before foreign exchange impact	110,763	99,290
Total long-lived assets	168,816		209,827
Blood Center
Segment Reporting Information [Line Items]
Net revenues before foreign exchange impact	77,996	79,818
Total long-lived assets	88,560		110,073
Hospital
Segment Reporting Information [Line Items]
Net revenues before foreign exchange impact	47,187	45,845
Total long-lived assets	19,372		24,079
Other
Segment Reporting Information [Line Items]
Total long-lived assets	0		$ 0
Operating Segments
Segment Reporting Information [Line Items]
Operating (loss) income	110,360	98,721
Operating Segments | Plasma
Segment Reporting Information [Line Items]
Operating (loss) income	53,725	41,921
Operating Segments | Blood Center
Segment Reporting Information [Line Items]
Operating (loss) income	37,719	38,472
Operating Segments | Hospital
Segment Reporting Information [Line Items]
Operating (loss) income	18,916	18,328
Corporate
Segment Reporting Information [Line Items]
Corporate expenses	$ (61,703)	$ (61,050)