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Cash Flow Information - Summary of Non-cash Investing Activities (Detail)
$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2022
TWD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
TWD ($)
Dec. 31, 2020
TWD ($)
Payments for property, plant and equipment        
Purchase of property, plant and equipment $ 75,800,574 $ 2,466,664 $ 74,417,541 $ 59,024,201
Increase (decrease) in other non-current assets (5,480) (178) 1,184,927 78,291
Decrease (increase) in other payables (3,096,926) (100,779) (4,671,228) 3,029,162
Capitalized borrowing costs (58,263) (1,896) (25,581) (54,208)
Payments for property, plant and equipment 72,639,905 2,363,811 70,905,659 62,077,446
Proceeds from disposal of property, plant and equipment        
Consideration from disposal of property, plant and equipment 612,213 19,922 1,128,850 5,184,925
Decrease (increase) in other non-current assets 134,760 4,385 (134,760)  
Decrease (increase) in other receivables 2,784 91 610,912 (735,812)
Proceeds from disposal of property, plant and equipment $ 749,757 $ 24,398 $ 1,605,002 $ 4,449,113