Financial Instruments Balance Sheet Location (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Commodity Contract \| Designated as Hedging Instrument \| Prepaid and other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 603	$ 667
Commodity Contract \| Not Designated as Hedging Instrument \| Prepaid and other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	243	97
Interest rate swap agreements \| Not Designated as Hedging Instrument \| Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative instruments, liabilities	(103)	(138)
Foreign Exchange Forward \| Designated as Hedging Instrument \| Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative Assets	2,266	0
Derivative instruments, liabilities	(42)	0
Foreign Exchange Forward \| Designated as Hedging Instrument \| Trade and other receivables/Prepaid and other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 107	$ 0

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 50

-Paragraph 3

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

-Publisher FASB

-Name Accounting Standards Codification

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

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant