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Dividends (Details) $ / shares in Units, ¥ in Thousands, $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 31, 2014 | Sep. 30, 2019 $ / shares | Jun. 30, 2019 | Dec. 31, 2020 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
Dividends |  |  |  |  |  |  |
Quarterly cash dividend distribution percentage | 25.00% |  |  |  |  |  |
Cash dividend declared |  |  |  | ¥ 4,280,465 |  | ¥ 8,840,634 | ¥ 1,440,194
Less than |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |
Quarterly cash dividend distribution percentage |  |  | 30.00% |  |  |  |
Equal to or more than |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |
Quarterly cash dividend distribution percentage |  |  | 20.00% |  |  |  |
With respect to fiscal year 2019 |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |
Cash dividend declared |  |  |  |  |  | ¥ 9,353,600 |
With respect to fiscal year 2020 |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |
Cash dividend declared |  |  |  | ¥ 3,614,800 | $ 554.0 |  |
American Depositary Shares |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |
Additional special dividend approved (in dollars per share) | $ / shares |  | $ 0.69 |  |  |  |  |

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