XML 179 R160.htm IDEA: XBRL DOCUMENT v3.21.1
Profit Before Income Tax - Summary of Employee Benefits Expense (Detail)
$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2020
TWD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
TWD ($)
Dec. 31, 2018
TWD ($)
Post-employment benefits        
Defined contribution plans $ 2,979,167 $ 106,096 $ 3,148,209 $ 2,965,054
Defined benefit plans 217,186 7,735 277,041 291,333
Post-employment benefits 3,196,353 113,831 3,425,250 3,256,387
Equity-settled share-based payments 955,575 34,030 871,699 215,648
Other employee benefits 76,648,412 2,729,644 70,279,752 63,940,430
Employee benefits expense 80,800,340 2,877,505 74,576,701 67,412,465
Operating costs [member]        
Post-employment benefits        
Employee benefits expense 52,526,164 1,870,590 49,173,778 45,363,170
Operating expense [member]        
Post-employment benefits        
Employee benefits expense $ 28,274,176 $ 1,006,915 $ 25,402,923 $ 22,049,295