Hedging Transactions and Derivative Financial Instruments (Effect and Fair Value of Derivative Instruments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Designated as Hedging Instrument [Member] | Other comprehensive income (loss) [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Effect of current derivative instruments	$ 10		$ (87)
Designated as Hedging Instrument [Member] | Other comprehensive income (loss) [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Effect of current derivative instruments	36	$ 82	85	$ 121
Not Designated as Hedging Instrument [Member] | Other income (expense), net [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Effect of current derivative instruments	(315)	71	(123)	(83)
Not Designated as Hedging Instrument [Member] | Other income (expense), net [Member] | Copper Derivative Instruments [Member]
Derivative [Line Items]
Effect of current derivative instruments	$ (245)	$ (390)	$ (694)	$ (1,053)