Hedging Transactions and Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions

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

Volume of Copper Derivatives
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	191 metric tons per month
October 2019 - December 2019	144 metric tons per month

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

Notional Values of Foreign Currency Derivatives
KRW/USD	₩	2,650,560,000
JPY/EUR	¥	465,000,000
EUR/USD	€	12,413,251
EUR/HUF	€	1,582,984
USD/CNY	$	10,637,837

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

Effects on Financial Statements:

(Dollars in thousands)		The Effect of Current Derivative Instruments on the Financial Statements for the period ended September 30, 2018						Fair Values of Derivative Instruments as of September 30, 2018
		Gain (Loss)						Other Current Assets/ (Other Accrued Liabilities)
Foreign Exchange Contracts	Location	Three Months Ended			Nine Months Ended
Contracts not designated as hedging instruments	Other income (expense), net	$	29		$	(95	)	$	342
Copper Derivatives
Contracts not designated as hedging instruments	Other income (expense), net	$	(453	)	$	(1,637	)	$	631
Interest Rate Swap
Contracts designated as hedging instruments	Other comprehensive income (loss)	$	270		$	1,669		$	1,710

(Dollars in thousands)		The Effect of Current Derivative Instruments on the Financial Statements for the period ended September 30, 2017				Fair Values of Derivative Instruments as of September 30, 2017
		Gain (Loss)				Other Current Assets/ (Other Accrued Liabilities)
Foreign Exchange Contracts	Location	Three Months Ended		Nine Months Ended
Contracts not designated as hedging instruments	Other income (expense), net	(198	)	(382	)	(382	)
Copper Derivatives
Contracts not designated as hedging instruments	Other income (expense), net	474		578		1,534
Interest Rate Swap
Contracts designated as hedging instruments	Other comprehensive income (loss)	100		(415	)	(638	)