RESTRUCTURING (Schedule of Restructuring and Related Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 01, 2022	Dec. 26, 2020	Jan. 01, 2022	Dec. 26, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ (79)	$ (92)	$ 4,036	$ 900
Restructuring related costs	5,761	3,235	16,214	10,683
Total restructuring and restructuring related costs	5,682	3,143	20,250	11,583
Plasma
Restructuring Cost and Reserve [Line Items]
Restructuring costs	(192)	(27)	2,507	454
Restructuring related costs	1,400	431	4,541	1,235
Blood Center
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0	66	3	240
Restructuring related costs	24	518	554	1,024
Hospital
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0	0	(91)	(18)
Restructuring related costs	127	4	292	14
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring costs	113	(131)	1,617	224
Restructuring related costs	4,210	2,282	10,827	8,410
Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring costs	(187)	(49)	2,276	218
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0	(2)	108	108
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 108	$ (41)	$ 1,652	$ 574