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Equity - Summary of Exchange Differences on Translating Foreign Operations (Detail) $ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2022 TWD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 TWD ($) | Dec. 31, 2020 TWD ($)
Beginning balance | $ 268,171,060 |  | $ 231,737,116 | $ 212,802,312
Exchange differences arising on translating foreign operations | 10,326,729 | $ 336,047 | (4,094,565) | (831,784)
Share from associates and joint venture accounted for using the equity method | (152,833) | (4,974) | 29,209 | 131,009
Ending balance | 313,276,385 | 10,194,480 | 268,171,060 | 231,737,116
Exchange differences on translating foreign operations [member] |  |  |  |
Beginning balance | (15,393,646) | (500,932) | (11,641,939) | (10,762,684)
Exchange differences arising on translating foreign operations | 9,981,949 | 324,827 | (3,203,730) | (1,173,204)
Share from associates and joint venture accounted for using the equity method | (117,691) | (3,830) | 21,307 | 101,038
Disposal of associates and joint venture accounted for using the equity method |  |  |  | 29,971
Disposal of foreign operations |  |  | (569,284) | 162,940
Ending balance | $ (5,529,388) | $ (179,935) | $ (15,393,646) | $ (11,641,939)

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