Stock-Based Compensation (Details 3) (USD $)	12 Months Ended
Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Stock-based compensation costs
Share based compensation cost before tax	$ 39,067,000	$ 30,800,000	$ 31,176,000
Income tax benefit	4,024,000	2,633,000	4,911,000
Share based compensation cost after tax	35,043,000	28,167,000	26,265,000
Total unrecognized compensation costs related to awards	51,200,000
Cost of revenues
Stock-based compensation costs
Share based compensation cost before tax	775,000	952,000	1,206,000
Research and development
Stock-based compensation costs
Share based compensation cost before tax	18,521,000	14,530,000	12,602,000
Selling, general and administrative
Stock-based compensation costs
Share based compensation cost before tax	$ 19,771,000	$ 15,318,000	$ 17,368,000

Represents the expense 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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

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-Publisher SEC

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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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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

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

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