Employee Stock Plans (Narrative) (Details) In Millions, unless otherwise specified	Dec. 28, 2014
Stock Options and Restricted Stock Units [Member]
Common stock available for issuance pursuant to future equity-based compensation awards and ESPP	47.2
Employee Stock Purchase Plan [Member]
Common stock available for issuance pursuant to future equity-based compensation awards and ESPP	7.3

Aggregate number of common shares reserved for future issuance.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant