Derivative Instruments - Financial Information Related to Cash Flow Hedges of Future Revenues (Detail) (Cash Flow Hedging [Member]) In Thousands, unless otherwise specified	3 Months Ended
Apr. 04, 2015 USD ($)	Mar. 29, 2014 USD ($)	Dec. 31, 2014	Apr. 04, 2015 Foreign Exchange Forward [Member] EUR (€)	Dec. 31, 2014 Foreign Exchange Forward [Member] EUR (€)
Derivative [Line Items]
Notional balance of outstanding contracts versus the dollar				€ 90,306	€ 88,969
Hedge effectiveness	100.00%		100.00%
Net gains (losses) included in revenue	$ 6,435	$ (971)

Nominal or face amount used to calculate payments on the derivative asset.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

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