Consolidated Statements of Changes in Equity shares in Thousands, $ in Thousands, $ in Thousands |
TWD ($) |
USD ($) |
Share capital [member]
TWD ($)
shares
|
Share capital [member]
USD ($)
shares
|
Capital surplus [member]
TWD ($)
|
Capital surplus [member]
USD ($)
|
Legal reserve [member]
TWD ($)
|
Legal reserve [member]
USD ($)
|
Special reserve [member]
TWD ($)
|
Special reserve [member]
USD ($)
|
Unappropriated earnings [member]
TWD ($)
|
Unappropriated earnings [member]
USD ($)
|
Retained earnings [member]
TWD ($)
|
Retained earnings [member]
USD ($)
|
Exchange differences on translating foreign operations [member]
TWD ($)
|
Exchange differences on translating foreign operations [member]
USD ($)
|
Unrealized gain (loss) on financial assets at fair value through other comprehensive income [member]
TWD ($)
|
Unrealized gain (loss) on financial assets at fair value through other comprehensive income [member]
USD ($)
|
Gain loss on hedging instrument [Member]
TWD ($)
|
Gain loss on hedging instrument [Member]
USD ($)
|
Unearned Employee Compensation [Member]
TWD ($)
|
Equity Directly Associated with Disposal Groups Held for Sale [member]
TWD ($)
|
Equity Directly Associated with Disposal Groups Held for Sale [member]
USD ($)
|
Other equity[member]
TWD ($)
|
Other equity[member]
USD ($)
|
Treasury shares [member]
TWD ($)
|
Treasury shares [member]
USD ($)
|
Equity Attributable to Owners of the Company [member]
TWD ($)
|
Equity Attributable to Owners of the Company [member]
USD ($)
|
Non-controlling interests [member]
TWD ($)
|
Non-controlling interests [member]
USD ($)
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beginning balance at Dec. 31, 2020 | $ 231,737,116 | $ 43,515,920 | $ 139,767,550 | $ 3,901,384 | $ 10,847,697 | $ 30,084,965 | $ 44,834,046 | $ (11,641,939) | $ 2,027,902 | $ (429,265) | $ (10,043,302) | $ (1,959,107) | $ 216,115,107 | $ 15,622,009 | |||||||||||||||||
| Beginning balance, shares at Dec. 31, 2020 | shares | 4,351,592 | 4,351,592 | |||||||||||||||||||||||||||||
| Appropriation of earnings | |||||||||||||||||||||||||||||||
| Legal reserve | 2,398,814 | (2,398,814) | |||||||||||||||||||||||||||||
| Special reserve | (1,278,670) | 1,278,670 | |||||||||||||||||||||||||||||
| Cash dividends distributed by the Company | (18,389,856) | (18,389,856) | (18,389,856) | (18,389,856) | |||||||||||||||||||||||||||
| Total appropriation of earnings | (18,389,856) | 2,398,814 | (1,278,670) | (19,510,000) | (18,389,856) | (18,389,856) | |||||||||||||||||||||||||
| Change from investments in associates accounted for using the equity method | (30,533) | (30,533) | 450,054 | 450,054 | (450,054) | (450,054) | (30,533) | ||||||||||||||||||||||||
| Other changes in the capital surplus | 1,633 | 1,633 | 1,633 | ||||||||||||||||||||||||||||
| Net profit for the year | 62,249,997 | 60,150,167 | 60,150,167 | 60,150,167 | 2,099,830 | ||||||||||||||||||||||||||
| Other comprehensive income (loss) for the year, net of income tax | 406,016 | 25,842 | 25,842 | (3,751,707) | 3,654,754 | 551,098 | 454,145 | 479,987 | (73,971) | ||||||||||||||||||||||
| Total comprehensive income (loss) | 62,656,013 | 60,176,009 | 60,176,009 | (3,751,707) | 3,654,754 | 551,098 | 454,145 | 60,630,154 | 2,025,859 | ||||||||||||||||||||||
| Buy-back of ordinary shares | (5,529,255) | (5,529,255) | (5,529,255) | ||||||||||||||||||||||||||||
| Cash dividends received by subsidiaries from the Company | 305,737 | 305,737 | 305,737 | ||||||||||||||||||||||||||||
| Disposal of subsidiary | 0 | ||||||||||||||||||||||||||||||
| Differences between consideration and carrying amount arising from acquisition of subsidiaries | 0 | ||||||||||||||||||||||||||||||
| Changes in percentage of ownership interest in subsidiaries | (5,337,683) | (58,448) | (2,530,714) | (2,530,714) | (2,589,162) | (2,748,521) | |||||||||||||||||||||||||
| Issue of ordinary shares under employee share options | 3,054,372 | $ 570,582 | 3,648,781 | $ (1,164,991) | (1,164,991) | 3,054,372 | |||||||||||||||||||||||||
| Issue of ordinary shares under employee share options (Shares) | shares | 57,058 | 57,058 | |||||||||||||||||||||||||||||
| Cash dividends distributed by subsidiaries | (1,062,529) | (1,062,529) | |||||||||||||||||||||||||||||
| Additional non-controlling interest arising on issue of employee share options by subsidiaries | 372,846 | 58,448 | 58,448 | 314,398 | |||||||||||||||||||||||||||
| Issue of convertible bonds by subsidiary | 393,199 | 393,199 | |||||||||||||||||||||||||||||
| Disposal of investments in equity instruments at fair value through other comprehensive income | 1,042,241 | 1,042,241 | (1,042,241) | (1,042,241) | |||||||||||||||||||||||||||
| Ending balance at Dec. 31, 2021 | 268,171,060 | $ 44,086,502 | 143,693,168 | 6,300,198 | 9,569,027 | 69,712,555 | 85,581,780 | (15,393,646) | 4,190,361 | 121,833 | (1,164,991) | (12,246,443) | (7,488,362) | 253,626,645 | 14,544,415 | ||||||||||||||||
| Ending balance, shares at Dec. 31, 2021 | shares | 4,408,650 | 4,408,650 | |||||||||||||||||||||||||||||
| Appropriation of earnings | |||||||||||||||||||||||||||||||
| Legal reserve | 6,282,762 | (6,282,762) | |||||||||||||||||||||||||||||
| Special reserve | 798,025 | (798,025) | |||||||||||||||||||||||||||||
| Cash dividends distributed by the Company | (30,501,981) | (30,501,981) | (30,501,981) | (30,501,981) | |||||||||||||||||||||||||||
| Total appropriation of earnings | (30,501,981) | 6,282,762 | 798,025 | (37,582,768) | (30,501,981) | (30,501,981) | |||||||||||||||||||||||||
| Donations from shareholders | 471,894 | 471,894 | 471,894 | ||||||||||||||||||||||||||||
| Change from investments in associates accounted for using the equity method | 7,623 | 7,623 | 152,102 | 152,102 | (152,102) | (152,102) | 7,623 | ||||||||||||||||||||||||
| Other changes in the capital surplus | 1,186 | 1,186 | 1,186 | ||||||||||||||||||||||||||||
| Net profit for the year | 64,618,094 | 61,501,545 | 61,501,545 | 61,501,545 | 3,116,549 | ||||||||||||||||||||||||||
| Other comprehensive income (loss) for the year, net of income tax | 8,632,472 | 895,896 | 895,896 | 9,864,258 | (2,953,279) | 398,448 | 7,309,427 | 8,205,323 | 427,149 | ||||||||||||||||||||||
| Total comprehensive income (loss) | 73,250,566 | 62,397,441 | 62,397,441 | 9,864,258 | (2,953,279) | 398,448 | 7,309,427 | 69,706,868 | 3,543,698 | ||||||||||||||||||||||
| Buy-back of ordinary shares | (205,608) | (205,608) | (205,608) | ||||||||||||||||||||||||||||
| Cancelation of treasury shares | $ (550,000) | (2,463,716) | (2,721,147) | (2,721,147) | 5,734,863 | ||||||||||||||||||||||||||
| Cancelation of treasury shares, shares | shares | (55,000) | (55,000) | |||||||||||||||||||||||||||||
| Cash dividends received by subsidiaries from the Company | 38,404 | 38,404 | 38,404 | ||||||||||||||||||||||||||||
| Disposal of subsidiary | 0 | ||||||||||||||||||||||||||||||
| Differences between consideration and carrying amount arising from acquisition of subsidiaries | 0 | ||||||||||||||||||||||||||||||
| Changes in percentage of ownership interest in subsidiaries | (532,922) | (8,963) | (211,184) | (211,184) | (220,147) | (312,775) | |||||||||||||||||||||||||
| Issue of ordinary shares under employee share options | 1,618,328 | $ 143,339 | 742,845 | 732,144 | 732,144 | 1,618,328 | |||||||||||||||||||||||||
| Issue of ordinary shares under employee share options (Shares) | shares | 14,334 | 14,334 | |||||||||||||||||||||||||||||
| Cash dividends distributed by subsidiaries | (575,089) | (575,089) | |||||||||||||||||||||||||||||
| Additional non-controlling interest arising on issue of employee share options by subsidiaries | 440,920 | 125,049 | 125,049 | 315,871 | |||||||||||||||||||||||||||
| Issue of convertible bonds by subsidiary | 1,092,004 | 1,092,004 | |||||||||||||||||||||||||||||
| Disposal of investments in equity instruments at fair value through other comprehensive income | (190,525) | (190,525) | 190,525 | 190,525 | |||||||||||||||||||||||||||
| Ending balance at Dec. 31, 2022 | 313,276,385 | $ 43,679,841 | 142,607,490 | 12,582,960 | 10,367,052 | 91,556,474 | 114,506,486 | (5,529,388) | $ (180,581) | 1,275,505 | 520,281 | (432,847) | (4,166,449) | (1,959,107) | 294,668,261 | 18,608,124 | $ 607,711 | ||||||||||||||
| Ending balance, shares at Dec. 31, 2022 | shares | 4,367,984 | 4,367,984 | |||||||||||||||||||||||||||||
| Appropriation of earnings | |||||||||||||||||||||||||||||||
| Legal reserve | 6,001,564 | (6,001,564) | |||||||||||||||||||||||||||||
| Special reserve | (6,845,501) | 6,845,501 | |||||||||||||||||||||||||||||
| Cash dividends distributed by the Company | (38,482,083) | (38,482,083) | (38,482,083) | (38,482,083) | |||||||||||||||||||||||||||
| Total appropriation of earnings | (38,482,083) | 6,001,564 | (6,845,501) | (37,638,146) | (38,482,083) | (38,482,083) | |||||||||||||||||||||||||
| Change from investments in associates accounted for using the equity method | 3,255 | 3,255 | 3,255 | ||||||||||||||||||||||||||||
| Other changes in the capital surplus | 87 | 87 | 87 | ||||||||||||||||||||||||||||
| Net profit for the year | 37,307,860 | $ 1,218,415 | 35,457,908 | 35,457,908 | 35,457,908 | 1,849,952 | |||||||||||||||||||||||||
| Other comprehensive income (loss) for the year, net of income tax | 449,350 | 14,675 | (32,134) | (32,134) | (1,505,241) | 2,347,561 | $ 76,668 | (242,840) | $ (4,676) | 594,804 | 562,670 | (113,320) | |||||||||||||||||||
| Total comprehensive income (loss) | 37,757,210 | 1,233,090 | 35,425,774 | 35,425,774 | (1,505,241) | 2,347,561 | (242,840) | (4,676) | 594,804 | 36,020,578 | 1,736,632 | ||||||||||||||||||||
| Cash dividends received by subsidiaries from the Company | 641,387 | 641,387 | 641,387 | ||||||||||||||||||||||||||||
| Disposal of subsidiary | (295,895) | (295,895) | (9,663) | ||||||||||||||||||||||||||||
| Differences between consideration and carrying amount arising from acquisition of subsidiaries | 427,913 | 427,913 | 13,974 | ||||||||||||||||||||||||||||
| Issue of ordinary shares under employee share options | 1,537,850 | $ 174,657 | 929,634 | 712 | 712 | $ 432,847 | 432,847 | 1,537,850 | |||||||||||||||||||||||
| Issue of ordinary shares under employee share options (Shares) | shares | 17,466 | 17,466 | |||||||||||||||||||||||||||||
| Cash dividends distributed by subsidiaries | (912,261) | (912,261) | |||||||||||||||||||||||||||||
| Additional non-controlling interest arising on issue of employee share options by subsidiaries | 384,513 | 90,773 | 90,773 | 293,740 | |||||||||||||||||||||||||||
| Issue of convertible bonds by subsidiary | 412,294 | 412,294 | |||||||||||||||||||||||||||||
| Reversal of special reserve appropriated at the first-time adoption of IFRS Accounting Standards | (561,978) | 561,978 | |||||||||||||||||||||||||||||
| Disposal of investments in equity instruments at fair value through other comprehensive income | 73,418 | 73,418 | (73,418) | (73,418) | |||||||||||||||||||||||||||
| Ending balance at Dec. 31, 2023 | $ 314,750,655 | $ 10,279,251 | $ 43,854,498 | $ 1,432,218 | $ 144,272,626 | $ 4,711,712 | $ 18,584,524 | $ 606,941 | $ 2,959,573 | $ 96,655 | $ 89,980,210 | $ 2,938,609 | $ 111,524,307 | $ 3,642,205 | $ (7,034,629) | $ (229,740) | $ 3,549,648 | $ 115,926 | $ 277,441 | $ 9,061 | $ (4,676) | $ (153) | $ (3,212,216) | $ (104,906) | $ (1,959,107) | $ (63,981) | $ 294,480,108 | $ 9,617,248 | $ 20,270,547 | $ 662,003 | |
| Ending balance, shares at Dec. 31, 2023 | shares | 4,385,450 | 4,385,450 |