Hedging Transactions and Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Notional values of outstanding derivative positions

Notional Value of Copper Derivatives
January 2014 - March 2014	30 metric tons per month
January 2014 - April 2014	30 metric tons per month
January 2014 - June 2014	75 metric tons per month
April 2014 - June 2014	35 metric tons per month
July 2014 - September 2014	40 metric tons per month
May 2014 - December 2014	30 metric tons per month
July 2014 - December 2014	80 metric tons per month
October 2014 - December 2014	15 metric tons per month
January 2014 - December 2014	45 metric tons per month
January 2015 - March 2015	106 metric tons per month

Notional Values of Foreign Currency Derivatives
YEN/USD	¥	300,000,000
USD/KRW	$	2,000,000
USD/EUR	$	3,500,000
HUF/EUR	280,000,000
JPY/EUR	¥	160,100,000

Gain (loss) on derivative instruments

(Dollars in thousands)	The Effect of Current Derivative Instruments on the Financial Statements for the year ended December 31, 2013				Fair Values of Derivative Instruments as of December 31, 2013
Foreign Exchange Contracts	Location of gain (loss)	Amount of gain (loss)			Other Assets (Liabilities)
Contracts not designated as hedging instruments	Other income, net	$	(79	)	$	(79	)
Contracts designated as hedging instruments	Other comprehensive income (loss)	(24		)	2
Copper Derivative Instruments
Contracts not designated as hedging instruments	Other income, net	(373		)	984
Interest Rate Swap Instrument
Contracts designated as hedging instruments	Other comprehensive income (loss)	(296		)	(296		)

(Dollars in thousands)	The Effect of Current Derivative Instruments on the Financial Statements for the year ended December 31, 2012				Fair Values of Derivative Instruments as of December 31, 2012
Foreign Exchange Contracts	Location of gain (loss)	Amount of gain (loss)			Other Assets (Liabilities)
Contracts not designated as hedging instruments	Other income, net	$	342		$	15
Copper Derivative Instruments
Contracts not designated as hedging instruments	Other income, net	(366		)	267
Interest Rate Swap Instrument
Contracts designated as hedging instruments	Other comprehensive income (loss)	(361		)	(361		)