Hedging Transactions and Derivative Financial Instruments (Effect and Fair Value of Derivative Instruments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Foreign Exchange Contract [Member]
Derivative [Line Items]
Contracts designated as hedging instruments, Other comprehensive income (loss), Amount of gain (loss)	$ (7)
Contracts not designated as hedging instruments, Other income (expense), net, Amount of gain (loss)		5
Copper Derivative Instruments [Member]
Derivative [Line Items]
Contracts not designated as hedging instruments, Other income (expense), net, Amount of gain (loss)	(1,027)	(183)
Interest Rate Swap Instrument [Member]
Derivative [Line Items]
Contracts designated as hedging instruments, Other comprehensive income (loss), Amount of gain (loss)	$ (269)	$ (9)