Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

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Maximum period for which derivative contracts cover currency and commodity exposures.

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- Definition

A disclosure of an assertion that the amount of cash flow hedge ineffectiveness is immaterial.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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- Definition

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.

+ References

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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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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 designated as cash flow hedging instruments. 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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- Definition

Aggregate notional amount of all derivatives not designated as a hedging instrument. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

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

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DERIVATIVES (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2011 year day segment	Sep. 30, 2011 Designated as hedging instruments Foreign exchange contracts	Dec. 31, 2010 Designated as hedging instruments Foreign exchange contracts	Sep. 30, 2011 Designated as hedging instruments Foreign exchange contracts Other Current Assets	Dec. 31, 2010 Designated as hedging instruments Foreign exchange contracts Other Current Assets	Sep. 30, 2011 Designated as hedging instruments Foreign exchange contracts Other Current Liabilities	Dec. 31, 2010 Designated as hedging instruments Foreign exchange contracts Other Current Liabilities	Sep. 30, 2011 Not designated as hedging instruments Foreign exchange contracts	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts	Sep. 30, 2011 Not designated as hedging instruments Foreign exchange contracts Other Current Assets	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts Other Current Assets	Sep. 30, 2011 Not designated as hedging instruments Foreign exchange contracts Other Current Liabilities	Dec. 31, 2010 Not designated as hedging instruments Foreign exchange contracts Other Current Liabilities	Sep. 30, 2011 Not designated as hedging instruments Commodity contracts Other Current Assets	Dec. 31, 2010 Not designated as hedging instruments Commodity contracts Other Current Liabilities	Sep. 30, 2011 Not designated as hedging instruments Silver forward contract ozt	Dec. 31, 2010 Not designated as hedging instruments Silver forward contract ozt	Sep. 30, 2011 Other Current Assets	Dec. 31, 2010 Other Current Assets	Sep. 30, 2011 Other Current Liabilities	Dec. 31, 2010 Other Current Liabilities
DERIVATIVES
Maximum period for which derivative contracts cover currency and commodity exposures (in years)	2
Hedge ineffectiveness was immaterial	Hedge ineffectiveness was immaterial in the nine months ended September 30, 2011 and 2010.
Fair values of derivative instruments
Notional amount of foreign currency forward contracts designated as cash flow hedges		$ 60,972	$ 33,221
Notional amount of foreign exchange forward contracts that are not designated as hedges								157,283	173,116
Notional amounts of forward contracts that are not designated as hedges (in troy ounces)																340,000	380,000
Fair value of derivative assets				1,711	381					1,532	252			3,195				6,438	633
Fair value of derivative liabilities						$ 637	$ 728					$ 1,131	$ 1,228		$ 1,051					$ 1,768	$ 3,007