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Net Investment Hedge (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2017 USD ($)	Jul. 03, 2016 USD ($)	Jul. 02, 2017 USD ($)	Jul. 03, 2016 USD ($)	Dec. 31, 2016 EUR (€)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign currency translation adjustment	$ (17,107)	$ 1,094	$ (26,943)	$ (1,093)
4.125% Senior subordinated notes due 2026 | Senior Subordinate Notes
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Aggregate principal amount outstanding of senior subordinated notes | €					€ 200,000,000
Foreign currency translation adjustment			$ 5,100

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Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
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+ References

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