Hedging Transactions and Derivative Financial Instruments (Effect and Fair Value of Derivative Instruments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Foreign Exchange Contract [Member]
Derivative [Line Items]
Contracts not designated as hedging instruments, Other income (expense), net, Amount of gain (loss)	$ (87)	$ (14)	$ (153)	$ (9)
Copper Derivative Instruments [Member]
Derivative [Line Items]
Contracts not designated as hedging instruments, Other income (expense), net, Amount of gain (loss)	15	(162)	(663)	(345)
Interest Rate Swap Instrument [Member]
Derivative [Line Items]
Contracts designated as hedging instruments, Other comprehensive income (loss), Amount of gain (loss)	$ 13	$ 121	$ 39	$ 112