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ACQUISITION - Narrative (Details) - USD ($) $ in Thousands, shares in Millions		12 Months Ended
	Jul. 02, 2018	Mar. 28, 2020	Mar. 30, 2019	Mar. 31, 2018
Business Acquisition [Line Items]
Goodwill		$ 796,216	$ 1,278,380
Triangle [Member]
Business Acquisition [Line Items]
Ownership percentage	16.00%	17.80%
Polycom
Business Acquisition [Line Items]
Goodwill	$ 1,264,417
Business Combination, Consideration Transferred	$ 2,200,000
Business Combination, Consideration Transferred, Equity Interests Issued And Issuable, Shares	6.4
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 500,000
Payments to Acquire Businesses, Gross	1,700,000
Business Combination, Adjustment, Deferred Tax And Tax Liabilities		$ 45,200
Business Combination, Adjustment, Working Capital Adjustment		8,000
Business Combination, Adjustment, Other		1,400
Goodwill, Purchase Accounting Adjustments		(54,600)
Deferred Revenue Adjustment [Member] \| Polycom
Business Acquisition [Line Items]
Revenues			(84,800)	$ (84,800)
Fair Value Adjustment to Inventory [Member] \| Polycom
Business Acquisition [Line Items]
Revenues			30,400	30,400
Acquisition-related Costs [Member] \| Polycom
Business Acquisition [Line Items]
Revenues			$ 19,200	$ 19,200
In Process Research and Development [Member] \| Polycom
Business Acquisition [Line Items]
Indefinite-lived Intangible Assets Acquired	$ 58,000	$ 58,000