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Equity Compensation (Summary of Effect of Stock-Based Compensation on Cost of Goods Sold) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 31, 2012
Effect on pre-tax income	$ 23,074	$ 21,495	$ 12,178
Income tax benefit	(8,445)	(106)
Total share based compensation expense (net of taxes)	14,629	21,389	12,178
Share based compensation effects on basic earnings per share	$ 0.50	$ 0.33	$ 0.19
Share based compensation effects on diluted earnings per share	$ 0.48	$ 0.32	$ 0.18
Share based compensation effects on operating activities cash flow	14,629	21,389	12,178
Share based compensation effects on financing activities cash flow	8,445	106
Cost of Sales [Member]
Effect on pre-tax income	864	751	398
Research and Development [Member]
Effect on pre-tax income	10,392	10,549	5,590
Selling, General and Administrative [Member]
Effect on pre-tax income	$ 11,818	$ 10,195	$ 6,190

X

- Definition

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

+ References

No definition available.

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- Definition

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

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No definition available.

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- Definition

The net effect of share based compensation expense on the operating section of the cash flow statement

+ References

No definition available.

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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.

+ References

No definition available.

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- Definition

Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 24

-URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11374-113907

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- Definition

Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 24

-URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11374-113907

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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=31042434&loc=d3e3602-108585

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