Accumulated Other Comprehensive Loss (Details) $ in Thousands	6 Months Ended
Jun. 28, 2016 USD ($)
Accumulated Other Comprehensive Loss
Balance as of beginning of period	$ 669,662
Balance as of end of period	717,425
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Loss
Balance as of beginning of period	(109)
Other comprehensive loss before reclassification	(66)
Reclassification adjustments to income (1)	45
Income taxes	8
Balance as of end of period	(122)
Cash Flow Hedges
Accumulated Other Comprehensive Loss
Balance as of beginning of period	(27)
Reclassification adjustments to income (1)	45
Income taxes	(18)
Foreign Currency Translation
Accumulated Other Comprehensive Loss
Balance as of beginning of period	(82)
Other comprehensive loss before reclassification	(66)
Income taxes	26
Balance as of end of period	$ (122)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580

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Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684

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-Name Accounting Standards Codification
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-Section 45
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Amount before tax of reclassification adjustments of other comprehensive income (loss) attributable to parent.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
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