XML 170 R152.htm IDEA: XBRL DOCUMENT v3.22.1
Profit Before Income Tax - Summary of Other Operating Income and Expenses, Net (Detail)
$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2021
TWD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
TWD ($)
Dec. 31, 2019
TWD ($)
Analysis of income and expense [abstract]        
Rental income $ 175,373 $ 6,322 $ 153,682 $ 136,301
Gains (loss) on disposal of property, plant and equipment and other assets 71,770 2,587 460,868 (164,467)
Impairment loss (Note 15) (126,766) (4,571) (992,273) (201,006)
Royalty income 135,400 4,881    
Others 934,052 33,673 880,215 (39,383)
Other operating income and expenses, net $ 1,189,829 $ 42,892 $ 502,492 $ (268,555)