Hedging Transactions and Derivative Financial Instruments (Effect and Fair Value of Derivative Instruments) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Designated as Hedging Instrument [Member] | Other comprehensive income (loss) [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Effect of current derivative instruments	$ (335)		$ (100)
Designated as Hedging Instrument [Member] | Other comprehensive income (loss) [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Effect of current derivative instruments	35	$ 13	51	$ 39
Not Designated as Hedging Instrument [Member] | Other income (expense), net [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Effect of current derivative instruments	(125)	(87)	(398)	(153)
Not Designated as Hedging Instrument [Member] | Other income (expense), net [Member] | Copper Derivative Instruments [Member]
Derivative [Line Items]
Effect of current derivative instruments	$ (157)	$ 15	$ (449)	$ (663)