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. 25, 2017	Mar. 26, 2016	Mar. 28, 2015
Effect on pre-tax income	$ 39,593	$ 33,506	$ 37,549
Income Tax Benefit	(12,482)	(10,306)	(11,467)
Total share based compensation expense (net of taxes)	$ 27,111	$ 23,200	$ 26,082
Share based compensation effects on basic earnings per share	$ 0.43	$ 0.37	$ 0.42
Share based compensation effects on diluted earnings per share	$ 0.41	$ 0.35	$ 0.40
Cost of Sales [Member]
Effect on pre-tax income	$ 1,071	$ 1,145	$ 747
Research and Development [Member]
Effect on pre-tax income	21,186	17,173	11,222
Selling, General and Administrative [Member]
Effect on pre-tax income	$ 17,336	$ 15,188	$ 25,580

Share Based Compensation Effects On Basic Earnings (Loss) Per Share

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- Definition

Share Based Compensation Effects On Diluted Earnings (Loss) Per Share

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- Definition

The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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No definition available.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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