Hedging Transactions and Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions

As of June 30, 2018 the notional values of these foreign currency forward contracts were:

Notional Values of Foreign Currency Derivatives
KRW/USD	₩	3,454,400,000
JPY/EUR	¥	335,000,000
EUR/USD	€	12,822,491
EUR/HUF	€	1,132,697
USD/CNY	$	10,637,837

The notional values of our copper contracts outstanding as of June 30, 2018 were:

Volume of Copper Derivatives
July 2018 - September 2018	153 metric tons per month
October 2018 - December 2018	153 metric tons per month
January 2019 - March 2019	189 metric tons per month
April 2019 - June 2019	188 metric tons per month
July 2019 - September 2019	145 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 June 30, 2018						Fair Values of Derivative Instruments as of June 30, 2018
		Gain (Loss)						Other Assets (Liabilities)
Foreign Exchange Contracts	Location	Three Months Ended			Six Months Ended
Contracts not designated as hedging instruments	Other income (expense), net	$	(60	)	$	(124	)	$	118
Copper Derivatives
Contracts not designated as hedging instruments	Other income (expense), net	$	(363	)	$	(1,185	)	$	827
Interest Rate Swap
Contracts designated as hedging instruments	Other comprehensive income (loss)	$	410		$	1,399		$	1,439

(Dollars in thousands)		The Effect of Current Derivative Instruments on the Financial Statements for the period ended June 30, 2017						Fair Values of Derivative Instruments as of June 30, 2017
		Gain (Loss)						Other Assets (Liabilities)
Foreign Exchange Contracts	Location	Three Months Ended			Six Months Ended
Contracts not designated as hedging instruments	Other income (expense), net	$	(312	)	$	(291	)	$	(312	)
Copper Derivatives
Contracts not designated as hedging instruments	Other income (expense), net	$	71		$	205		$	1,331
Interest Rate Swap
Contracts designated as hedging instruments	Other comprehensive income (loss)	$	(335	)	$	(515	)	$	(622	)