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Contents of Significant Accounts - Expected Future Benefit Payments (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 TWD ($)
Disclosure of defined benefit plans [line items] |
Expected future benefit payments | $ 4,945,888
Not later than one year [member] |
Disclosure of defined benefit plans [line items] |
Expected future benefit payments | 404,452
Later than one year and not later than two years [member] |
Disclosure of defined benefit plans [line items] |
Expected future benefit payments | 367,702
Later than two years and not later than three years [member] |
Disclosure of defined benefit plans [line items] |
Expected future benefit payments | 387,394
Later than three years and not later than four years [member] |
Disclosure of defined benefit plans [line items] |
Expected future benefit payments | 384,106
Later than four years and not later than five years [member] |
Disclosure of defined benefit plans [line items] |
Expected future benefit payments | 391,245
Later than five years [member] |
Disclosure of defined benefit plans [line items] |
Expected future benefit payments | $ 3,010,989

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The estimate of the expected future payments to be made to employees under a defined benefit plan. + References No definition available. + Details
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