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Consolidated Statements of Changes in Equity $ in Thousands, $ in Thousands | TWD ($) | USD ($) | Capital stock [member] TWD ($) | Capital surplus [member] TWD ($) | Legal reserve [member] TWD ($) | Special reserve [member] TWD ($) | Unappropriated retained earnings [member] TWD ($) | Financial statements translation differences of foreign operations [member] TWD ($) | Unearned employee awards [member] TWD ($) | Treasury stock [member] TWD ($) | unrealized gain (loss) on valuation of financial assets at fair value through other comprehensive income [member] TWD ($)
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2018 | $ 18,021,173 |  | $ 7,528,577 | $ 6,263,553 | $ 1,469,170 |  | $ 3,602,663 | $ 14,516 | $ (1,701) | $ (962,503) | $ 106,898
Profit for the year | 2,508,574 |  |  |  |  |  | 2,508,574 |  |  |  |
Other comprehensive income (loss) | (127,266) |  |  |  |  |  | 17,372 | (104,198) |  |  | (40,440)
Total comprehensive income (loss) for the year (Note 24) | 2,381,308 |  |  |  |  |  | 2,525,946 | (104,198) |  |  | (40,440)
Appropriation of prior year's earnings: |  |  |  |  |  |  |  |  |  |  |
Legal reserve (Note 23) |  |  |  |  | 110,308 |  | (110,308) |  |  |  |
Cash dividends (Note 23) | (872,718) |  |  |  |  |  | (872,718) |  |  |  |
Restricted shares (Note 20) | 822 |  | (477) | (412) |  |  | 10 |  | $ 1,701 |  |
Cancellation of treasury stock (Note 21) |  |  | (255,699) | (212,354) |  |  | (494,450) |  |  | $ 962,503 |
Disposal of investment accounted for using equity method (Note 24) |  |  |  |  |  |  | 72 |  |  |  | (72)
Ending Balance at Dec. 31, 2019 | 19,530,585 |  | 7,272,401 | 6,050,787 | 1,579,478 |  | 4,651,215 | (89,682) |  |  | 66,386
Profit for the year | 2,378,978 |  |  |  |  |  | 2,378,978 |  |  |  |
Other comprehensive income (loss) | 115,308 |  |  |  |  |  | (41,374) | 28,352 |  |  | 128,330
Total comprehensive income (loss) for the year (Note 24) | 2,494,286 |  |  |  |  |  | 2,337,604 | 28,352 |  |  | 128,330
Appropriation of prior year's earnings: |  |  |  |  |  |  |  |  |  |  |
Legal reserve (Note 23) |  |  |  |  | 258,416 |  | (258,416) |  |  |  |
Special reserve (Note 23) |  |  |  |  |  | $ 19,802 | (19,802) |  |  |  |
Cash dividends (Note 23) | (1,309,032) |  |  |  |  |  | (1,309,032) |  |  |  |
Ending Balance at Dec. 31, 2020 | 20,715,839 |  | 7,272,401 | 6,050,787 | 1,837,894 | 19,802 | 5,401,569 | (61,330) |  |  | 194,716
Profit for the year | 4,937,267 | $ 177,984 |  |  |  |  | 4,937,267 |  |  |  |
Other comprehensive income (loss) | 84,203 | 3,035 |  |  |  |  | (4,251) | (24,695) |  |  | 113,149
Total comprehensive income (loss) for the year (Note 24) | 5,021,470 | 181,019 |  |  |  |  | 4,933,016 | (24,695) |  |  | 113,149
Appropriation of prior year's earnings: |  |  |  |  |  |  |  |  |  |  |
Legal reserve (Note 23) |  |  |  |  | 232,611 |  | (232,611) |  |  |  |
Special reserve (Note 23) |  |  |  |  |  | $ (19,802) | 19,802 |  |  |  |
Cash dividends (Note 23) | (1,599,928) |  |  |  |  |  | (1,599,928) |  |  |  |
Changes in associates accounted for using equity method (Note 22) | 4,834 |  |  | 4,834 |  |  |  |  |  |  |
Ending Balance at Dec. 31, 2021 | $ 24,142,215 | $ 870,303 | $ 7,272,401 | $ 6,055,621 | $ 2,070,505 |  | $ 8,521,848 | $ (86,025) |  |  | $ 307,865

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