XML 176 R158.htm IDEA: XBRL DOCUMENT v3.22.1
Profit Before Income Tax - Summary of Operating Expenses Directly Related to Investment Properties (Detail)
$ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
TWD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
TWD ($)
Dec. 31, 2019
TWD ($)
Direct operating expense from investment property [abstract]        
Direct operating expenses of investment properties that generated rental income $ 1,422,463 $ 51,278 $ 1,121,854 $ 1,232,826