Share-Based Compensation-Activity (Details Textuals 1) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 29, 2015	Dec. 28, 2014
Compensation and Benefits
Share-based compensation expense capitalized in inventory	$ 5.4	$ 4.3
Employee Stock Option [Member]
Compensation and Benefits
Total unrecognized compensation cost, net of forfeitures, related to awards granted to employees	44.1
Employee service, Nonvested awards, Total Compensation Cost not yet Recognized, Period for Recognition	2 years 7 months
Restricted Stock Units (RSUs) [Member]
Compensation and Benefits
Total unrecognized compensation cost, net of forfeitures, related to awards granted to employees	346.1
Employee service, Nonvested awards, Total Compensation Cost not yet Recognized, Period for Recognition	2 years 11 months
Employee Stock Purchase Plan Shares [Member]
Compensation and Benefits
Total unrecognized compensation expense for ESPP	$ 5.5
Employee service, Nonvested awards, Total Compensation Cost not yet Recognized, Period for Recognition	0 years 5 months

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As of the latest balance-sheet date presented, the total unrecognized compensation cost related to employee stock purchase plan (will be charged against earnings through the end of the plan period).

+ References

No definition available.

+ Details

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- Definition

Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, 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 2

-Subparagraph (h)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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

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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

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