SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions	12 Months Ended
	Mar. 28, 2020 USD ($) Customer	Mar. 30, 2019 USD ($) Customer	Mar. 31, 2018 USD ($) Customer	Jul. 02, 2018	May 31, 2015 USD ($)
Product Information [Line Items]
Unrecorded Unconditional Purchase Obligation	$ 220.4
Revenue From Contracts With Customers, Percentage Associated With Non-cancellable Maintenance And Support Contracts	90.00%
Duration of fiscal year	364 days	371 days	364 days
Advertising expense	$ 0.8	$ 1.2	$ 0.9
Number of customers accounting for 10% or more of net accounts receivable | Customer			1
Accounts Receivable Financing, Gross	197.1
Transfer of Financial Assets Accounted for as Sales, Amount Derecognized	105.3
Accounts Receivable Financing, Current	22.5
Transfers Accounted for as Secured Borrowings, Assets, Carrying Amount	16.5
Financing Agreement, Fees	3.4
Inventory Off Balance Sheet	$ 21.7	$ 47.1
Minimum
Product Information [Line Items]
Product warranty terms			1 year
Maximum
Product Information [Line Items]
Product warranty terms	2 years
Customer concentration risk | Accounts receivable
Product Information [Line Items]
Number of customers accounting for 10% or more of net accounts receivable | Customer		3
D&H Distributors And Ingram Micro [Member] | Customer concentration risk | Accounts receivable
Product Information [Line Items]
Number of customers accounting for 10% or more of net accounts receivable | Customer		3
Scansource, D&H Distributors And Ingram Micro [Member] | Customer concentration risk | Accounts receivable
Product Information [Line Items]
Number of customers accounting for 10% or more of net accounts receivable | Customer	3
Ingram Micro [Member] | Customer concentration risk | Accounts receivable
Product Information [Line Items]
Concentration risk percentage	22.20%	21.30%
ScanSource [Member] | Customer concentration risk | Accounts receivable
Product Information [Line Items]
Concentration risk percentage	17.30%	19.20%
Synnex Corp. [Member] | Customer concentration risk | Accounts receivable
Product Information [Line Items]
Concentration risk percentage	15.60%
D&H Distributors [Member] | Customer concentration risk | Accounts receivable
Product Information [Line Items]
Concentration risk percentage	10.90%	10.90%
Triangle [Member]
Product Information [Line Items]
Ownership percentage	17.80%			16.00%
5.50% Senior Notes | Senior notes
Product Information [Line Items]
Debt Instrument, Face Amount					$ 500.0
Stated interest rate			5.50%		5.50%