CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jul. 03, 2016	Jun. 28, 2015
Income Statement [Abstract]
Revenues	$ 192,128	$ 160,907
Cost of revenues	83,779	61,673
Gross profit	108,349	99,234
Operating expenses:
Research and development	49,648	33,754
Selling, general and administrative	38,816	28,143
Total operating expenses	88,464	61,897
Operating income	19,885	37,337
Interest expense	(4,148)	0
Interest income and other, net	1,652	1,818
Income before income taxes from continuing operations	17,389	39,155
Income tax expense (benefit)	(3,558)	435
Net income from continuing operations	20,947	38,720
Discontinued operations:
Loss from discontinued operations before income taxes	0	(547)
Income tax expense	0	15
Net loss from discontinued operations	0	(562)
Net income	$ 20,947	$ 38,158
Basic net income per share - continuing operations (in dollars per share)	$ 0.16	$ 0.26
Basic net income per share - discontinued operations (in dollars per share)	0.00	0.00
Basic net income per share (in dollars per share)	0.16	0.26
Diluted net income per share - continuing operations (in dollars per share)	0.15	0.25
Diluted net loss per share - discontinued operations (in dollars per share)	0.00	0.00
Diluted net income per share (in dollars per share)	$ 0.15	$ 0.25
Weighted average shares:
Basic (shares)	133,934	148,396
Diluted (shares)	138,109	153,758