Share-Based Compensation Modifications of Share-Based Awards (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 28, 2014 employees	Dec. 29, 2013 employees	Dec. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of employees subject to modification	45	20
Increase in employee share-based compensation due to award modification	$ 2,376	$ 986
Share-based Compensation	28,243	19,613	11,473
Facilities action charges, net [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in employee share-based compensation due to award modification	4,472	1,253
Modified Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	2,376	1,042	(45)
Modified Awards [Member] \| General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	(2,096)	(267)
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	$ 13,820	$ 7,300	$ 5,578

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

-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

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

+ References

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

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The number of employees affected by the modification of an equity-based compensation plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

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