CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jul. 03, 2021	Jun. 27, 2020
Net revenues	$ 431,172	$ 355,720
Cost of revenues	255,983	199,388
Gross profit	175,189	156,332
Operating expenses
Research, development, and engineering	45,466	50,029
Selling, general, and administrative	120,734	116,644
Loss, net from litigation settlements	0	17,561
Restructuring and other related charges	28,972	29,330
Total operating expenses	195,172	213,564
Operating loss	(19,983)	(57,232)
Interest expense	21,782	21,184
Other non-operating income, net	(692)	(224)
Loss before income taxes	(41,073)	(78,192)
Income tax benefit	(4,262)	(3,177)
Net loss	$ (36,811)	$ (75,015)
Per share data
Basic (in dollars per share)	$ (0.88)	$ (1.85)
Diluted (in dollars per share)	$ (0.88)	$ (1.85)
Basic (in shares)	42,061	40,460
Diluted (in shares)	42,061	40,460
Product
Net revenues	$ 371,203	$ 291,458
Cost of revenues	235,196	176,615
Service
Net revenues	59,969	64,262
Cost of revenues	$ 20,787	$ 22,773