Equity Compensation (Summary of Effect of Stock-Based Compensation on Cost of Goods Sold) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 25, 2017	Mar. 26, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Effect on pre-tax income	$ 48,741	$ 39,593	$ 33,506
Income Tax Benefit	(5,953)	(12,482)	(10,306)
Total share-based compensation expense (net of taxes)	$ 42,788	$ 27,111	$ 23,200
Share based compensation effects on basic earnings per share (in dollars per share)	$ 0.67	$ 0.43	$ 0.37
Share based compensation effects on diluted earnings per share (in dollars per share)	$ 0.65	$ 0.41	$ 0.35
Cost of sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Effect on pre-tax income	$ 1,474	$ 1,071	$ 1,145
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Effect on pre-tax income	26,137	21,186	17,173
Sales, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Effect on pre-tax income	$ 21,130	$ 17,336	$ 15,188