Derivative Instruments and Hedging Activities (Details) (USD $) In Thousands	Oct. 01, 2011	Dec. 31, 2010	Oct. 02, 2010
Derivative contracts
Assets	$ 445	$ 8,733	$ 3,316
Liabilities	(208)	(112)	(363)
Foreign currency forward contracts \| Derivatives designated as hedging instruments:
Derivative contracts
Notional Amounts	7,840	3,572	3,572
Assets		942	820
Liabilities	(108)
Commodity futures contracts \| Derivatives designated as hedging instruments:
Derivative contracts
Notional Amounts	5,473	4,407	4,941
Assets	445	2,310	647
Liabilities	(100)
Commodity option contracts \| Derivatives designated as hedging instruments:
Derivative contracts
Notional Amounts		10,344	10,344
Assets		5,481	1,849
Liabilities		(112)	(350)
Derivatives designated as hedging instruments:
Derivative contracts
Assets	445	8,733	3,316
Liabilities	(208)	(112)	(350)
Commodity option contracts \| Derivatives not designated as hedging instruments:
Derivative contracts
Notional Amounts			462
Liabilities			(13)
Derivatives not designated as hedging instruments:
Derivative contracts
Liabilities			$ (13)

Fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (a),(c)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624163-113959

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44C

-Subparagraph a

-Clause 1

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 205G

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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- Definition

Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Aggregate notional amount of all derivatives. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

+ References

Reference 1: 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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