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Inventories - Summary of Inventories (Detail)
$ in Thousands, $ in Thousands
Dec. 31, 2022
TWD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
TWD ($)
Classes of current inventories [abstract]      
Finished goods $ 12,628,314 $ 410,944 $ 8,454,783
Work in process 8,821,890 287,078 7,950,743
Raw materials 61,672,903 2,006,928 46,978,647
Supplies 3,344,968 108,850 3,339,042
Raw materials and supplies in transit 869,400 28,292 1,109,766
Inventories $ 87,337,475 $ 2,842,092 $ 67,832,981