SEGMENT REPORTING AND GEOGRAPHIC INFORMATION SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Segments Results for Revenue and Gross Margin (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 03, 2021	Dec. 26, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Apr. 03, 2021	Mar. 28, 2020	Mar. 30, 2019
Segment Reporting, Asset Reconciling Item [Line Items]
Total segment gross profit, as reviewed by CODM	$ 212,816	$ 226,657	$ 180,746	$ 156,332	$ (10,328)	$ 143,846	$ 206,071	$ 212,646	$ 776,551	$ 552,235	$ 694,139
Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total segment revenues, as reviewed by CODM									1,742,012	1,730,943	1,759,359
Total segment gross profit, as reviewed by CODM									862,006	898,594	928,952
Operating Segments | Products Reportable Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total segment revenues, as reviewed by CODM									1,471,963	1,434,635	1,518,687
Total segment gross profit, as reviewed by CODM									679,484	697,212	766,068
Operating Segments | Services Reportable Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total segment revenues, as reviewed by CODM									270,049	296,308	240,672
Total segment gross profit, as reviewed by CODM									$ 182,522	$ 201,382	$ 162,884