Changes in Goodwill (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Sep. 27, 2014	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Goodwill [Rollforward]
Balance at beginning of period	$ 471,791us-gaap_Goodwill	$ 471,791us-gaap_Goodwill	$ 482,613us-gaap_Goodwill
Impairment of goodwill	148,500us-gaap_GoodwillImpairmentLoss	144,159us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss
Foreign currency translation		(10,375)us-gaap_GoodwillTranslationAdjustments	(10,822)us-gaap_GoodwillTranslationAdjustments
Balance at end of period		$ 317,257us-gaap_Goodwill	$ 471,791us-gaap_Goodwill	$ 482,613us-gaap_Goodwill

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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- Definition

Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-Paragraph 1

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