XML 59 R49.htm IDEA: XBRL DOCUMENT v3.10.0.1
Hedging Transactions and Derivative Financial Instruments (Notional Values of Derivative Instruments) (Details)
Jun. 30, 2018
JPY (¥)
T
Jun. 30, 2018
EUR (€)
T
Jun. 30, 2018
USD ($)
T
Jun. 30, 2018
KRW (₩)
T
Contracts not designated as hedging instruments | KRW/USD | Foreign Exchange Forward        
Derivative [Line Items]        
Notional amount | ₩       ₩ 3,454,400,000
Contracts not designated as hedging instruments | JPY/EUR | Foreign Exchange Forward        
Derivative [Line Items]        
Notional amount | ¥ ¥ 335,000,000      
Contracts not designated as hedging instruments | EUR/USD | Foreign Exchange Forward        
Derivative [Line Items]        
Notional amount | €   € 12,822,491    
Contracts not designated as hedging instruments | EUR/HUF | Foreign Exchange Forward        
Derivative [Line Items]        
Notional amount | €   € 1,132,697    
Contracts not designated as hedging instruments | USD/CNY | Foreign Exchange Forward        
Derivative [Line Items]        
Notional amount | $     $ 10,637,837  
Contracts designated as hedging instruments | October 2018 - December 2018        
Derivative [Line Items]        
Volume of Copper Derivatives 153 153 153 153
Contracts designated as hedging instruments | January 2019 - March 2019        
Derivative [Line Items]        
Volume of Copper Derivatives 153 153 153 153
Contracts designated as hedging instruments | April 2019 - June 2019        
Derivative [Line Items]        
Volume of Copper Derivatives 16,289 16,289 16,289 16,289
Contracts designated as hedging instruments | July 2019 - September 2019        
Derivative [Line Items]        
Volume of Copper Derivatives 188 188 188 188
Contracts designated as hedging instruments | July 2019 - September 2019        
Derivative [Line Items]        
Volume of Copper Derivatives 145 145 145 145