Foreign Currency Exchange and Futures Contracts (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Fair Value Hedges [Member]
Derivative [Line Items]
Expected release to pre-tax earnings
Amount released to pre-tax earnings
Foreign currency exchange contracts [Member] | Cash Flow Hedges [Member]
Derivative [Line Items]
Expected release to pre-tax earnings	72		72
Amount released to pre-tax earnings	52	(18)	131	180
Foreign currency purchase contracts [Member]
Derivative [Line Items]
Expected release to pre-tax earnings	27		27
Amount released to pre-tax earnings	7	8	20	24
Commodities hedge contracts [Member]
Derivative [Line Items]
Expected release to pre-tax earnings	117		117
Amount released to pre-tax earnings	$ (192)	$ (46)	$ (438)	$ 734