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Financial Instruments at Fair Value Through Profit or Loss - Summary of Outstanding Contracts Not Accounted for Hedge Accounting (Detail) € in Thousands, ₩ in Thousands, ¥ in Thousands, ¥ in Thousands, zł in Thousands, RM in Thousands, $ in Thousands, $ in Thousands, $ in Thousands | 12 Months Ended |  |
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Dec. 31, 2022 CNY (¥) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 TWD ($) | Dec. 31, 2022 JPY (¥) | Dec. 31, 2022 KRW (₩) | Dec. 31, 2022 EUR (€) | Dec. 31, 2022 MYR (RM) | Dec. 31, 2022 SGD ($) | Dec. 31, 2022 PLN (zł) | Dec. 31, 2021 USD ($) | Dec. 31, 2021 TWD ($) | Dec. 31, 2021 JPY (¥) | Dec. 31, 2021 KRW (₩) | Dec. 31, 2021 EUR (€) | Dec. 31, 2021 MYR (RM) | Dec. 31, 2021 SGD ($)
Swap contracts [member] | Sell RMB/Buy US$ [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | ¥ 2,436,980 | ¥ 2,617,518 | $ 350,000 |  |  |  |  |  |  |  | $ 409,000 |  |  |  |  |  |
Swap contracts [member] | Sell NT$/Buy US$ [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  | 2,690,000 | $ 78,424,577 |  |  |  |  |  |  | 1,903,000 | $ 52,916,127 |  |  |  |  |
Swap contracts [member] | Sell NT$/Buy US$ [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Swap contracts [member] | Sell NT$/Buy US$ [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-12 | 2022-12 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Swap contracts [member] | Sell US$/Buy RMB [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period |  | 2022-02 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  | ¥ 349,800 |  |  |  |  |  |  |  |  | 54,415 |  |  |  |  |  |
Swap contracts [member] | Sell US$/Buy JPY [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period |  | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  |  |  |  |  |  |  | 17,671 |  | ¥ 2,000,000 |  |  |  |
Swap contracts [member] | Sell US$/Buy KRW [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  | 42,000 |  |  | ₩ 54,152,400 |  |  |  |  | 37,500 |  |  | ₩ 44,418,750 |  |  |
Swap contracts [member] | Sell US$/Buy NT$ [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  | 530,320 | 16,220,105 |  |  |  |  |  |  | 570,130 | 15,845,090 |  |  |  |  |
Swap contracts [member] | Sell US$/Buy NT$ [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period |  | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Swap contracts [member] | Sell US$/Buy NT$ [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period |  | 2022-04 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell RMB/Buy JPY [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | ¥ 42,181 | ¥ 35,127 |  |  | ¥ 810,000 |  |  |  |  |  |  |  | 630,000 |  |  |  |
Forward exchange contracts [member] | Sell RMB/Buy US$ [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period |  | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | ¥ 1,081,934 | ¥ 727,645 | 155,418 |  |  |  |  |  |  |  | 114,000 |  |  |  |  |  |
Forward exchange contracts [member] | Sell RMB/Buy US$ [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell RMB/Buy US$ [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-02 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell NT$/Buy US$ [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  | 130,000 | 4,010,015 |  |  |  |  |  |  | 125,000 | 3,465,805 |  |  |  |  |
Forward exchange contracts [member] | Sell NT$/Buy US$ [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell NT$/Buy US$ [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-03 | 2022-03 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy RMB [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | ¥ 2,579,155 | ¥ 1,701,695 | 368,500 |  |  |  |  |  |  |  | 265,000 |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy RMB [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy RMB [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-03 | 2022-06 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy JPY [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  | 63,743 |  | 8,485,493 |  |  |  |  |  | 94,747 |  | ¥ 10,789,851 |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy JPY [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period |  | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy JPY [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period |  | 2022-02 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy KRW [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  | 2,000 |  |  | ₩ 2,534,800 |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy NT$ [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period |  | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  | 125,410 | 3,830,145 |  |  |  |  |  |  | 10,000 | $ 277,735 |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy NT$ [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy NT$ [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-03 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy EUR [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period |  | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  | 14,668 |  |  |  | € 14,640 |  |  |  | 460 |  |  |  | € 407 |  |
Forward exchange contracts [member] | Sell US$/Buy EUR [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy EUR [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-10 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy MYR [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  | 25,000 |  |  |  |  | RM 112,639 |  |  | 8,000 |  |  |  |  | RM 33,430 |
Forward exchange contracts [member] | Sell US$/Buy MYR [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy MYR [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-03 | 2022-02 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy SGD [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  | 16,600 |  |  |  |  |  | $ 22,783 |  | 16,900 |  |  |  |  |  | $ 22,925
Forward exchange contracts [member] | Sell US$/Buy SGD [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 | 2022-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy SGD [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-02 | 2022-02 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy PLN [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  | $ 12,000 |  |  |  |  |  |  | zł 61,129 |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy PLN [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell US$/Buy PLN [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-12 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell EUR/Buy JPY [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  | ¥ 100,000 |  | € 697 |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell RMB/Buy NT$ [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | ¥ 7,000 |  |  | $ 30,722 |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell RMB/Buy NT$ [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-01 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward exchange contracts [member] | Sell RMB/Buy NT$ [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period | 2023-02 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Target redemption forward contracts [member] | Sell EUR/Buy US$ [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  |  |  |  |  |  |  | $ 3,475 |  |  |  | € 2,982 |  |
Target redemption forward contracts [member] | Sell EUR/Buy US$ [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period |  | 2022-04 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Target redemption forward contracts [member] | Sell EUR/Buy US$ [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity Period |  | 2022-06 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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