XML 177 R154.htm IDEA: XBRL DOCUMENT v3.23.1
Financial Risk Management and Fair Values of Financial Instruments - Summary of Movements in Relation to Loss Allowance for Contract Assets, Accounts Receivable and Other Receivables (Detail) - TWD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about financial instruments [Line Items]      
Financial assets beginning balance $ 13,170,873    
Financial assets ending balance 15,034,220 $ 13,170,873  
Contract assets [member]      
Disclosure of detailed information about financial instruments [Line Items]      
Financial assets beginning balance (120) (117) $ (114)
Provision for impairment loss (109) (3) (3)
Financial assets ending balance (229) (120) (117)
Accounts receivable including related parties [member]      
Disclosure of detailed information about financial instruments [Line Items]      
Financial assets beginning balance (1,910) (1,620) (1,351)
Provision for impairment loss (759) (290) (269)
Financial assets ending balance (2,669) (1,910) (1,620)
Other receivable including related parties [member]      
Disclosure of detailed information about financial instruments [Line Items]      
Financial assets beginning balance (16) (10) (18)
Provision for impairment loss (29) (6)  
Reversal of impairment loss     8
Financial assets ending balance $ (45) $ (16) $ (10)