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Significant Assets and Liabilities Denominated in Foreign Currencies (Tables)
 12 Months Ended
Dec. 31, 2017
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Summary of Significant Assets and Liabilities Denominated in Foreign Currencies

The following information was aggregated by the foreign currencies other than functional currencies of the group entities and the exchange rates between foreign currencies and respective functional currencies were disclosed. The significant financial assets and financial liabilities denominated in foreign currencies were as follows:

 

   

Foreign Currencies

(In Thousand)

   Exchange Rate  

Carrying Amount

(In Thousand)
             
December 31, 2016            
             
Monetary financial assets            
US$   $ 3,106,557     US$1=NT$32.25   $ 100,186,466  
US$     1,020,769     US$1=CNY6.9370     32,919,814  
JPY     4,976,309     JPY1=NT$0.2756     1,371,471  
JPY     9,277,760     JPY1=US$0.0085     2,556,951  
                     
Monetary financial liabilities                    
US$     3,013,288     US$1=NT$32.25     97,178,536  
US$     891,487     US$1=CNY6.9370     28,750,462  
JPY     5,881,716     JPY1=NT$0.2756     1,621,001  
JPY     9,543,756     JPY1=US$0.0085     2,630,259  
                     
December 31, 2017                    
                     
Monetary financial assets                    
US$     3,065,296     US$1=NT$29.76     91,223,195  
US$     1,193,369     US$1=CNY6.5342     35,514,653  
JPY     5,005,435     JPY1=NT$0.2642     1,322,436  
JPY     8,113,284     JPY1=US$0.0089     2,143,530  

 

(continued)

 

 

 

   

Foreign Currencies

(In Thousand)

   Exchange Rate  

Carrying Amount

(In Thousand)
             
Monetary financial liabilities            
US$   $ 2,902,995     US$1=NT$29.76   $ 86,393,137  
US$     1,007,629     US$1=CNY6.5342     29,987,042  
JPY     5,415,677     JPY1=NT$0.2642     1,430,822  
JPY     8,598,832     JPY1=US$0.0089     2,271,811  

 
Summary of Realized and Unrealized Foreign Exchange Gain (Loss)

The significant realized and unrealized foreign exchange gain (loss) were as follows:

 

    For the Year Ended December 31
    2015   2016   2017
Functional Currencies   Exchange Rate   Net Foreign Exchange Gain (Loss)   Exchange Rate   Net Foreign Exchange Gain (Loss)   Exchange Rate   Net Foreign Exchange Gain
        NT$       NT$       NT$   US$ (Note 4)
                             
NT$           $ (695,510 )           $ 1,494,044             $ 4,130,243     $ 139,347  
US$     US$1=NT$32.825       136,795       US$1=NT$32.25       203,258       US$1=NT$29.76       (244,802 )     (8,259 )
CNY     CNY1=NT$5.0550       (271,358 )     CNY1=NT$4.649       224,393       CNY1=NT$4.5545       (337,630 )     (11,391 )
                                                         
            $ (830,073 )           $ 1,921,695             $ 3,547,811     $ 119,697