v3.20.1

Cash Dividends - Additional Information (Details) |  |  |  | 2 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Aug. 24, 2018 CNY (¥) | Aug. 07, 2018 $ / shares | Jun. 01, 2017 $ / shares | Jul. 31, 2017 CNY (¥) | Dec. 31, 2017 CNY (¥) | Dec. 31, 2018 CNY (¥)
Cash dividend |  |  |  |  |  |
Total amount of cash distributed in the dividend | ¥ |  |  |  | ¥ 65,698,571 | ¥ 65,698,571 | ¥ 946,611,803
Discontinued operation, disposal by sale | ATA Online and its direct shareholding companies, ATA Learning and Zhongxiao Zhixing |  |  |  |  |  |
Cash dividend |  |  |  |  |  |
Total amount of cash distributed in the dividend | ¥ | ¥ 946,600,000 |  |  |  |  |
Common share |  |  |  |  |  |
Cash dividend |  |  |  |  |  |
Special cash dividend declared per share (in dollars per share) | $ / shares |  | $ 3.00 | $ 0.205 |  |  |
ADS |  |  |  |  |  |
Cash dividend |  |  |  |  |  |
Special cash dividend declared per share (in dollars per share) | $ / shares |  | $ 6.00 | $ 0.41 |  |  |

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