REVENUE AND MAJOR CUSTOMERS (Details) $ in Thousands	12 Months Ended
	Apr. 02, 2022 USD ($) Customer	Apr. 03, 2021 USD ($) Customer	Mar. 28, 2020 USD ($) Customer
Revenue from External Customer [Line Items]
Contract with Customer, Asset, Gross, Current	$ 4,300	$ 4,100
Revenue, Remaining Performance Obligation, Current	128,339
Net revenues	1,681,144	1,727,607	$ 1,696,990
Contract with Customer, Liability	$ 193,100	$ 213,800
Contract with Customer, Liability, Percentage Of Revenue	11.50%	12.40%
Number of major customers, ten percent or greater, net accounts receivable | Customer			1
Revenue, Remaining Performance Obligation, Noncurrent	$ 64,734
Revenue, Remaining Performance Obligation, Amount	193,073
Contract with Customer, Liability, Revenue Recognized	141,400
Product
Revenue from External Customer [Line Items]
Net revenues	1,455,785	$ 1,470,826	$ 1,432,736
Product | U.S.
Revenue from External Customer [Line Items]
Net revenues	687,818	647,321	708,566
Product | Europe and Africa
Revenue from External Customer [Line Items]
Net revenues	459,333	512,196	398,721
Product | Asia Pacific
Revenue from External Customer [Line Items]
Net revenues	210,220	208,597	221,912
Product | Americas, excluding U.S.
Revenue from External Customer [Line Items]
Net revenues	98,414	102,712	103,537
Product | Total international net revenues [Member]
Revenue from External Customer [Line Items]
Net revenues	767,967	823,505	724,170
Enterprise Headset [Member]
Revenue from External Customer [Line Items]
Net revenues	724,474	823,451	773,186
Voice
Revenue from External Customer [Line Items]
Net revenues	246,816	221,131	375,505
Video
Revenue from External Customer [Line Items]
Net revenues	484,495	426,244	284,045
Service
Revenue from External Customer [Line Items]
Net revenues	225,359	256,781	264,254
Service | U.S.
Revenue from External Customer [Line Items]
Net revenues	87,146	96,548	102,103
Service | Europe and Africa
Revenue from External Customer [Line Items]
Net revenues	56,039	64,660	66,900
Service | Asia Pacific
Revenue from External Customer [Line Items]
Net revenues	67,038	77,158	73,424
Service | Americas, excluding U.S.
Revenue from External Customer [Line Items]
Net revenues	15,136	18,415	21,827
Service | Total international net revenues [Member]
Revenue from External Customer [Line Items]
Net revenues	$ 138,213	$ 160,233	$ 162,151
Net Revenues [Member] | Customer concentration risk
Revenue from External Customer [Line Items]
Number of major customers, ten percent or greater, net revenues | Customer	2	2	2
Net Revenues [Member] | Customer concentration risk | Ingram Micro [Member]
Revenue from External Customer [Line Items]
Concentration risk percentage	25.00%	19.30%	17.30%
Net Revenues [Member] | Customer concentration risk | ScanSource [Member]
Revenue from External Customer [Line Items]
Concentration risk percentage	18.40%	19.00%	19.80%
Accounts receivable | Customer concentration risk
Revenue from External Customer [Line Items]
Number of major customers, ten percent or greater, net accounts receivable | Customer		2
Accounts receivable | Customer concentration risk | Ingram Micro [Member]
Revenue from External Customer [Line Items]
Concentration risk percentage	38.70%	24.70%
Accounts receivable | Customer concentration risk | Scansource, D&H Distributors And Ingram Micro [Member]
Revenue from External Customer [Line Items]
Number of major customers, ten percent or greater, net accounts receivable | Customer		2
Accounts receivable | Customer concentration risk | ScanSource [Member]
Revenue from External Customer [Line Items]
Concentration risk percentage	22.30%	24.90%
Minimum
Revenue from External Customer [Line Items]
Revenue From Contracts With Customers, Credit Term	30 days
Maximum
Revenue from External Customer [Line Items]
Revenue From Contracts With Customers, Credit Term	90 days