Derivatives and Hedging (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Commodity contracts
Derivatives, Fair Value
Total gross notional amount	$ 12,000,000
Foreign currency contracts
Derivatives, Fair Value
Total gross notional amount	127,000,000
Designated as Hedging Instrument
Derivatives, Fair Value
Total asset derivatives	1,024,000	735,000
Liability Derivative, Total	3,634,000	2,179,000
Designated as Hedging Instrument | Commodity contracts | Other current assets
Derivatives, Fair Value
Total asset derivatives	219,000	95,000
Designated as Hedging Instrument | Commodity contracts | Other accrued liabilities
Derivatives, Fair Value
Liability Derivative, Total	106,000	15,000
Designated as Hedging Instrument | Commodity contracts | Noncurrent liabilities
Derivatives, Fair Value
Liability Derivative, Total	184,000	13,000
Designated as Hedging Instrument | Foreign currency contracts | Other current assets
Derivatives, Fair Value
Total asset derivatives	805,000	640,000
Designated as Hedging Instrument | Foreign currency contracts | Other accrued liabilities
Derivatives, Fair Value
Liability Derivative, Total	3,344,000	2,130,000
Designated as Hedging Instrument | Foreign currency contracts | Noncurrent liabilities
Derivatives, Fair Value
Liability Derivative, Total		$ 21,000