RESTRUCTURING (Schedule of Restructuring and Related Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 165	$ 695	$ 121	$ 4,115
Restructuring related costs	3,029	3,818	6,551	10,453
Total restructuring and restructuring related costs	3,194	4,513	6,672	14,568
Plasma
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0	411	(211)	2,699
Restructuring related costs	108	1,403	748	3,141
Blood Center
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0	0	0	3
Restructuring related costs	16	40	18	530
Hospital
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0	(53)	0	(91)
Restructuring related costs	111	32	200	165
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring costs	165	337	332	1,504
Restructuring related costs	2,794	2,343	5,585	6,617
Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring costs	29	210	(177)	2,463
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0	3	0	108
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 136	$ 482	$ 298	$ 1,544