Represents the period over which the foreign currency derivatives are routinely hedged.

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- Definition

Represents the foreign currency translation gain (loss) recognized during the period, before offset from any gain (loss) on foreign currency derivatives not designated as hedges.

+ Details

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- Definition

The average contractual rate at which a foreign currency can be purchased or sold under the terms of a group of foreign currency derivative contracts.

+ Details

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- Details

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- Definition

Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624171-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5618551-113959

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- Definition

Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire.

+ Details

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- Definition

Aggregate notional amount of foreign currency derivatives to sell a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

+ References

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=6935481&loc=SL5580258-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

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

Reference 3: 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=6935481&loc=SL5579245-113959

+ Details

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Foreign Exchange Instruments (Details) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 01, 2011 USD ($)	Oct. 02, 2010 USD ($)	Oct. 01, 2011 USD ($)	Oct. 02, 2010 USD ($)	Oct. 01, 2011 Not Designated USD ($)	Oct. 02, 2010 Not Designated USD ($)	Oct. 01, 2011 Not Designated Forward contracts Euros to U.S. dollars EUR (€)	Oct. 02, 2010 Not Designated Forward contracts Euros to U.S. dollars EUR (€)	Oct. 01, 2011 Not Designated Forward contracts U.S. dollars to Euros USD ($)	Oct. 02, 2010 Not Designated Forward contracts U.S. dollars to Euros USD ($)	Oct. 01, 2011 Not Designated Forward contracts U.K. pounds to Euros GBP (£)	Oct. 02, 2010 Not Designated Forward contracts U.K. pounds to Euros GBP (£)
Foreign Exchange Instruments
Period over which foreign currency derivatives are routinely hedged (in months)			4
Foreign currency forward exchange details
Foreign currency contracts maximum maturity					4M
Sales, Notional Amounts					$ 16,515	$ 15,503	€ 8,000	€ 8,000	$ 3,800	$ 3,600	£ 1,200	£ 600
Average exchange rate									0.7075		1.1606
Realized fair value of forward currency contracts and offsets to foreign currency exchange gains and losses
Foreign currency exchange gain (loss) on foreign currency contracts	238	(188)	365	558
Foreign currency exchange gain (loss) on foreign translation adjustments	$ 61	$ (78)	$ (785)	$ (704)