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Stock-Based Compensation (Details) (USD $) | 3 Months Ended | 12 Months Ended | 3 Months Ended
--- | --- | --- | ---
Mar. 29, 2014 | Mar. 30, 2013 | Dec. 31, 2009 2009 Stock Incentive Plan | Mar. 29, 2014 Cost of revenues | Mar. 30, 2013 Cost of revenues | Mar. 29, 2014 Research and development | Mar. 30, 2013 Research and development | Mar. 29, 2014 Selling, general and administrative | Mar. 30, 2013 Selling, general and administrative
Stock-based compensation costs |  |  |  |  |  |  |  |  |
Term of plan |  |  | 10 years |  |  |  |  |  |
Share based compensation cost before tax | $ 9,277,000 | $ 6,260,000 |  | $ 195,000 | $ 253,000 | $ 4,241,000 | $ 3,339,000 | $ 4,841,000 | $ 2,668,000
Income tax benefit | 1,311,000 | 748,000 |  |  |  |  |  |  |
Share based compensation cost after tax | 7,966,000 | 5,512,000 |  |  |  |  |  |  |
Total unrecognized compensation costs related to awards | $ 73,000,000 |  |  |  |  |  |  |  |
Weighted-average period of recognition of unrecognized compensation costs | 2 years 3 months 18 days |  |  |  |  |  |  |  |

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: 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 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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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. + Details
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- Definition Unrecognized cost of unvested share-based compensation awards. + 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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