Consolidated Condensed Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 26, 2015	Dec. 27, 2014	Dec. 26, 2015	Dec. 27, 2014
Consolidated Condensed Statements of Income [Abstract]
Net sales	$ 347,863	$ 298,606	$ 937,252	$ 661,385
Cost of sales	182,952	167,775	497,666	354,612
Gross profit	164,911	130,831	439,586	306,773
Operating expenses:
Research and development	70,290	55,474	203,383	139,808
Selling, general and administrative	30,632	27,783	89,854	69,011
Acquisition related costs		3,200		18,137
Restructuring and other, net				1,455
Patent agreement and other	78		(11,670)
Total operating expenses	101,000	86,457	281,567	228,411
Income from operations	63,911	44,374	158,019	78,362
Interest income	165	89	634	419
Interest expense	(756)	(1,131)	(2,464)	(4,598)
Other expense	(925)	(1,071)	(1,313)	(12,564)
Income before income taxes	62,395	42,261	154,876	61,619
Provision for income taxes	21,011	19,532	45,258	27,790
Net income	$ 41,384	$ 22,729	$ 109,618	$ 33,829
Basic earnings per share	$ 0.65	$ 0.36	$ 1.73	$ 0.54
Diluted earnings per share	$ 0.63	$ 0.35	$ 1.66	$ 0.52
Basic weighted average common shares outstanding	63,328	62,885	63,316	62,386
Diluted weighted average common shares outstanding	65,761	65,214	66,184	65,024