CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Mar. 30, 2019
Net revenues	$ 1,727,607	$ 1,696,990	$ 1,674,535
Cost of revenues	951,056	1,144,755	980,396
Gross profit	776,551	552,235	694,139
Operating expenses
Research, development, and engineering	209,290	218,277	201,886
Selling, general, and administrative	488,378	595,463	567,879
impairment of goodwill and long-lived assets sg&a	0	489,094	0
Loss (gain), net from litigation settlements	17,561	(721)	975
Restructuring and other related charges	48,704	54,177	32,694
Total operating expenses	763,933	1,356,290	803,434
Operating income (loss)	12,618	(804,055)	(109,295)
Interest expense	82,606	92,640	83,000
Other non-operating income, net	(5,108)	(112)	(6,603)
Loss before income taxes	(64,880)	(896,583)	(185,692)
Income tax benefit	(7,549)	(69,401)	(50,131)
Net loss	$ (57,331)	$ (827,182)	$ (135,561)
Per share data
Basic earnings (loss) per common share (in dollars per share)	$ (1.40)	$ (20.86)	$ (3.61)
Diluted earnings (loss) per common share (in dollars per share)	$ (1.40)	$ (20.86)	$ (3.61)
Basic shares used in computing loss per common share (in shares)	41,044	39,658	37,569
Diluted shares used in computing loss per common share (in shares)	41,044	39,658	37,569
Product
Net revenues	$ 1,470,826	$ 1,432,736	$ 1,510,770
Cost of revenues	863,529	1,049,826	902,625
Service
Net revenues	256,781	264,254	163,765
Cost of revenues	$ 87,527	$ 94,929	$ 77,771