SEGMENT REPORTING AND GEOGRAPHIC INFORMATION SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Segment Revenue and Gross Margin Reconciliation (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]
Depreciation, as reviewed by CODM									$ 14,400	$ 15,200	$ 11,000
Net revenues	$ 476,233	$ 484,685	$ 410,969	$ 355,720	$ 403,043	$ 384,471	$ 461,709	$ 447,767	1,727,607	1,696,990	1,674,535
Gross profit	$ 212,816	$ 226,657	$ 180,746	$ 156,332	$ (10,328)	$ 143,846	$ 206,071	$ 212,646	776,551	552,235	694,139
Consumer optimization									(13,527)	(24,115)	(7,386)
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
Gross profit									862,006	898,594	928,952
Segment Reconciling Items
Segment Reporting, Asset Reconciling Item [Line Items]
Deferred revenue purchase accounting									(14,405)	(33,953)	(84,824)
Asset impairment									0	(174,235)	0
Purchase accounting amortization									(68,111)	(122,553)	(114,361)
Inventory valuation adjustment									0	0	(30,395)
Consumer optimization									0	(10,415)	0
Integration and rebranding costs									0	(1,211)	(1,057)
Stock-based compensation									$ (2,939)	$ (3,992)	$ (4,176)