XML 122 R99.htm IDEA: XBRL DOCUMENT v3.21.1
Financial Assets at Fair Value Through Profit or Loss - Summary of Financial Assets at Fair Value Through Profit or Loss (Detail)
$ in Thousands, $ in Thousands
Dec. 31, 2020
TWD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
TWD ($)
Financial Assets At Fair Value Through Profit Or Loss [line items]      
Current financial assets mandatorily measured at fair value through profit or loss $ 53,120 $ 1,892  
Non-current financial assets mandatorily measured at fair value through profit or loss 10,368   $ 11,038
Foreign partnership interest [member]      
Financial Assets At Fair Value Through Profit Or Loss [line items]      
Non-current financial assets mandatorily measured at fair value through profit or loss 10,940   10,940
Listed stocks [member]      
Financial Assets At Fair Value Through Profit Or Loss [line items]      
Current financial assets mandatorily measured at fair value through profit or loss 46,512    
Valuation adjustments [member]      
Financial Assets At Fair Value Through Profit Or Loss [line items]      
Current financial assets mandatorily measured at fair value through profit or loss 6,608    
Non-current financial assets mandatorily measured at fair value through profit or loss $ (572)   $ 98