XML 174 R155.htm IDEA: XBRL DOCUMENT v3.19.1
Profit Before Income Tax - Summary of Other Operating Income and Expenses, Net (Detail)
$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2018
TWD ($)
Dec. 31, 2017
TWD ($)
Dec. 31, 2016
TWD ($)
Analysis of income and expense [abstract]        
Rental income $ 5,959 $ 182,411 $ 131,570 $ 51,607
Gains (losses) on disposal of property, plant and equipment and other assets (479) (14,644) 367,110 (127,159)
Impairment losses on property, plant and equipment and goodwill (4,347) (133,071) (714,675) (888,231)
Loss on damages and claims (788) (24,114) (85,585) (12,778)
Others 11,794 361,001 410,136 176,281
Other operating income and expenses, net $ 12,139 $ 371,583 $ 108,556 $ (800,280)