Consolidated Condensed Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 25, 2021	Dec. 26, 2020
Income Statement [Abstract]
Net sales	$ 548,349	$ 485,795	$ 1,291,488	$ 1,075,693
Cost of sales	258,827	234,295	626,576	516,511
Gross profit	289,522	251,500	664,912	559,182
Operating expenses
Research and development	107,101	89,435	294,913	252,986
Selling, general and administrative	38,247	32,415	111,526	93,366
Restructuring costs	0	0	0	352
Total operating expenses	145,348	121,850	406,439	346,704
Income from operations	144,174	129,650	258,473	212,478
Interest income	140	1,465	1,448	4,958
Interest expense	(218)	(259)	(730)	(798)
Other income (expense)	(87)	(207)	1,530	688
Income before income taxes	144,009	130,649	260,721	217,326
Provision for income taxes	16,373	16,281	30,780	25,263
Net income	$ 127,636	$ 114,368	$ 229,941	$ 192,063
Basic earnings per share (in dollars per share)	$ 2.23	$ 1.97	$ 4.01	$ 3.30
Diluted earnings per share (in dollars per share)	$ 2.16	$ 1.91	$ 3.88	$ 3.20
Basic weighted average common shares outstanding (in shares)	57,178	58,024	57,374	58,176
Diluted weighted average common shares outstanding (in shares)	59,031	59,963	59,317	60,101