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PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 26, 2026	Sep. 27, 2025	Sep. 26, 2026	Sep. 27, 2025	Mar. 28, 2026
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, at cost	$ 873,319		$ 873,319		$ 841,829
Less: accumulated depreciation	(565,398)		(565,398)		(536,068)
Property, plant and equipment, net	307,921		307,921		305,761
Depreciation	15,700	$ 15,500	31,100	$ 30,900
Land
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, at cost	2,287		2,287		2,251
Building and building improvements
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, at cost	109,760		109,760		109,793
Plant equipment and machinery
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, at cost	201,813		201,813		197,552
Office equipment and information technology
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, at cost	133,678		133,678		131,085
Haemonetics equipment
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, at cost	388,783		388,783		371,205
Construction in progress
Property, Plant, and Equipment [Line Items]
Property, plant and equipment, at cost	$ 36,998		$ 36,998		$ 29,943