XML 114 R96.htm IDEA: XBRL DOCUMENT v3.22.1
Inventories Related to Real Estate Business - Summary of Inventories Related to Real Estate Business (Detail)
$ in Thousands, $ in Thousands
Dec. 31, 2021
TWD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
TWD ($)
Disclosure of detailed information about property, plant and equipment [Line Items]      
Inventories related to real estate business $ 5,412,114 $ 195,102 $ 13,471,645
Land and buildings held for sale [member]      
Disclosure of detailed information about property, plant and equipment [Line Items]      
Inventories related to real estate business 667,630 24,067 625,791
Construction in progress and machinery in transit [member]      
Disclosure of detailed information about property, plant and equipment [Line Items]      
Inventories related to real estate business 2,956,958 106,596 11,058,328
Land held for construction [member]      
Disclosure of detailed information about property, plant and equipment [Line Items]      
Inventories related to real estate business $ 1,787,526 $ 64,439 $ 1,787,526