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Financial Risk and Fair Value Disclosures - Reconciliation for Fair Value Measurement in Level 3 Derivatives Financial Liabilities (Detail)
$ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2023
TWD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
TWD ($)
Disclosure of fair value measurement of liabilities [line items]      
Beginning balance $ 201,834,635    
Ending balance 202,859,864 $ 6,625,077 $ 201,834,635
Derivatives [member] | Financial liabilities at fair value through profit or loss, category [member] | Level 3 [member]      
Disclosure of fair value measurement of liabilities [line items]      
Beginning balance 438,397   2,380,599
Recognized in profit (loss) 580,965   (1,433,405)
Derecognition     (508,797)
Ending balance $ 1,019,362   $ 438,397