SEGMENT AND ENTERPRISE-WIDE INFORMATION (Details) $ in Thousands	12 Months Ended
	Apr. 01, 2023 USD ($) unit	Apr. 02, 2022 USD ($)	Apr. 03, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of business units | unit	3
Net revenues by business unit	$ 1,168,060	$ 968,066	$ 851,310
Effect of exchange rates	(20,824)	4,319	(1,605)
Net revenues	1,168,660	993,196	870,463
Operating Income (Loss)	156,033	80,750	89,747
Effect of exchange rates	8,419	18,993	12,830
Amortization of acquired intangible assets	32,640	47,414	32,830
Impairment of assets and PCS2 related charges	616	(5,732)	(25,696)
Integration and transaction costs	(411)	21,604	18,421
Restructuring and Restructuring Related Costs	(11,549)	(28,824)	(15,661)
Digital transformation costs	4,536	0	0
European Medical Device Regulation Costs	9,854	11,033	4,130
Litigation-related charges	(5,230)	(1,368)	(897)
Gains on divestitures and sale of assets	382	9,603	32,812
Depreciation and amortization	93,307	97,747	84,287
Total long-lived assets	$ 310,885	258,482
Number of Reportable Segments | unit	3
Service [Member]
Segment Reporting Information [Line Items]
Net revenues	$ 21,424	20,811	20,758
Plasma products and services
Segment Reporting Information [Line Items]
Net revenues	563,734	427,611	414,266
Blood Center products and services
Segment Reporting Information [Line Items]
Net revenues	226,819	236,158	239,614
Hospital products and services
Segment Reporting Information [Line Items]
Net revenues	378,107	329,427	216,583
United States
Segment Reporting Information [Line Items]
Net revenues	842,897	639,322	522,607
Total long-lived assets	251,812	200,927
Japan
Segment Reporting Information [Line Items]
Net revenues	61,295	75,562	77,676
Total long-lived assets	997	1,096
Europe
Segment Reporting Information [Line Items]
Net revenues	156,680	163,520	159,077
Total long-lived assets	14,587	11,989
Asia
Segment Reporting Information [Line Items]
Net revenues	104,135	110,802	105,820
Total long-lived assets	26,263	28,132
Other
Segment Reporting Information [Line Items]
Net revenues	3,653	3,990	5,283
Total long-lived assets	17,226	16,338
Plasma products and services
Segment Reporting Information [Line Items]
Net revenues by business unit	500,489	351,945	333,334
Depreciation and amortization	41,612	28,314	24,093
Total long-lived assets	202,075	129,241
Blood Center products and services
Segment Reporting Information [Line Items]
Net revenues by business unit	289,365	294,541	307,370
Depreciation and amortization	13,927	32,489	39,672
Total long-lived assets	68,395	82,714
Hospital products and services
Segment Reporting Information [Line Items]
Net revenues by business unit	378,206	321,580	210,606
Depreciation and amortization	37,768	36,944	20,522
Total long-lived assets	40,415	46,527
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)	565,103	449,605	398,491
Operating Segments [Member] | Plasma products and services
Segment Reporting Information [Line Items]
Operating Income (Loss)	278,580	183,131	172,463
Operating Segments [Member] | Blood Center products and services
Segment Reporting Information [Line Items]
Operating Income (Loss)	132,107	136,691	141,962
Operating Segments [Member] | Hospital products and services
Segment Reporting Information [Line Items]
Operating Income (Loss)	154,416	129,783	84,066
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Other Expenses	$ 355,089	$ 281,476	$ 256,751