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Retained earnings (Tables) | 12 Months Ended
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Dec. 31, 2023
Retained earnings [abstract] |
Summary of Distribution Towards Legal Reserve and Cash Dividend | The appropriations and dividends per share are as follows:
|  | 2020 |  | 2021 |  | 2022
|  | Amount |  | Cash distribution per share |  | Amount |  | Cash distribution per share |  | Amount |  | Cash distribution per share
|  | NT$000 |  | NT$ |  | NT$000 |  | NT$ |  | NT$000 |  | NT$
Legal reserve |  | 232,611 |  |  |  | 505,482 |  |  |  | 354,986 |  |
Special reserve |  | (19,802) |  |  |  | — |  |  |  | — |  |
Cash dividend |  | 1,599,928 |  | 2.20 |  | 3,127,133 |  | 4.30 |  | 1,672,652 |  | 2.30

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- Definition Distribution towards legal reserve and cash dividend. + References No definition available. + Details
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