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Bonds Payable - Summary of Bonds Payable (Detail) $ in Thousands, $ in Thousands | Dec. 31, 2022 TWD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 TWD ($)
--- | --- | --- | ---
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | $ 47,850,324 | $ 1,557,121 | $ 52,267,337
Noncurrent portion | 42,851,353 | 1,394,447 | 42,364,627
Less: current portion of bonds payable | 4,998,971 | 162,674 | 9,902,710
Cost [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 48,244,760 | 1,569,956 | 52,692,581
Cost [member] | Repayable at maturity in January 2023 [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 2,000,000 | 65,083 | 2,000,000
Cost [member] | Repayable at maturity in January 2024 [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 4,300,000 | 139,928 | 4,300,000
Cost [member] | Repayable at maturity in April 2024 [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 6,500,000 | 211,520 | 6,500,000
Cost [member] | Repayable at maturity in April 2026 [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 3,500,000 | 113,895 | 3,500,000
Cost [member] | Repayable at maturity in April 2025 [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 10,000,000 | 325,415 | 10,000,000
Cost [member] | Repayable at maturity in October 2024 [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 3,102,400 | 100,957 | 3,102,400
Cost [member] | Repayable at maturity in August 2023 [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 3,000,000 | 97,624 | 3,000,000
Cost [member] | Repayable at maturity in August 2025 [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 5,000,000 | 162,707 | 5,000,000
Cost [member] | Repayable at maturity in August 2027 [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 2,000,000 | 65,083 | 2,000,000
Cost [member] | Repayable at Maturity in March 2027 [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 8,842,360 | 287,744 | 3,385,381
Cost [member] | Redeemed in September 2022 [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 0 | 0 | 6,204,800
Cost [member] | Redeemed in January 2022 [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | 0 | 0 | 3,700,000
Discounts on bonds payable [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Bonds payable | $ 394,436 | $ 12,835 | $ 425,244

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