Hedging Transactions and Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions

As of March 31, 2017 the notional values of these foreign currency forward contracts were:

Notional Values of Foreign Currency Derivatives
KRW/USD	₩	5,291,766,000
USD/JPY	$	512,637
JPY/EUR	¥	338,000,000
EUR/USD	€	3,914,930
EUR/HUF	€	586,678
USD/CNY	$	6,083,500

The notional values of our copper contracts outstanding as of March 31, 2017 were:

Notional Value of Copper Derivatives
April 2017 - June 2017	122	metric tons per month
July 2017 - September 2017	122	metric tons per month
October 2017 - December 2017	122	metric tons per month
January 2018 - March 2018	56	metric tons per month
April 2018 - June 2018	25	metric tons per month

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance

Effects on Statements of Operations and of Comprehensive Income (Loss):

(Dollars in thousands)		The Effect of Current Derivative Instruments on the Financial Statements for the period ended March 31, 2017			Fair Values of Derivative Instruments as of March 31, 2017
		Gain (Loss)			Other Assets (Liabilities)
Foreign Exchange Contracts	Location
Contracts not designated as hedging instruments	Other income (expense), net	$	21		$	21
Copper Derivatives
Contracts not designated as hedging instruments	Other income (expense), net	$	215		$	1,342
Interest Rate Swap
Contract designated as hedging instrument	Other comprehensive income (loss)	$	(180	)	$	(180	)

(Dollars in thousands)		The Effect of Current Derivative Instruments on the Financial Statements for the period ended March 31, 2016			Fair Values of Derivative Instruments as of March 31, 2016
		Gain (Loss)			Other Assets (Liabilities)
Foreign Exchange Contracts	Location
Contracts not designated as hedging instruments	Other income (expense), net	$	(114	)	$	(114	)
Copper Derivatives
Contracts not designated as hedging instruments	Other income (expense), net	$	33		$	255
Interest Rate Swap
Contracts designated as hedging instruments	Other comprehensive income (loss)	$	11		$	(7	)