RESTRUCTURING (Schedule of Restructuring and Related Costs) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 27, 2020	Jun. 29, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 1,065	$ 969
Turnaround costs	2,935	1,058
Total restructuring and turnaround costs	4,000	2,027
Blood Center
Restructuring Cost and Reserve [Line Items]
Restructuring costs	154	42
Turnaround costs	16	0
Hospital
Restructuring Cost and Reserve [Line Items]
Restructuring costs	129	203
Turnaround costs	9	0
Plasma
Restructuring Cost and Reserve [Line Items]
Restructuring costs	568	153
Turnaround costs	0	48
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring costs	214	571
Turnaround costs	2,910	1,010
Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring costs	243	796
Research and development
Restructuring Cost and Reserve [Line Items]
Restructuring costs	319	14
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 503	$ 159