v3.20.1

Discontinued Operations - Additional Information (Details) $ in Millions |  |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Aug. 24, 2018 CNY (¥) | Aug. 16, 2018 USD ($) entity | Dec. 31, 2017 CNY (¥) | Dec. 31, 2018 CNY (¥)
DISCONTINUED OPERATIONS |  |  |  |
Special cash dividend | ¥ | ¥ 946,600,000 |  | ¥ 65,698,571 | ¥ 946,613,862
ATA Online and its direct shareholding companies, ATA Learning and Zhongxiao Zhixing | Discontinued operation, disposal by sale | Entities Affiliated With Funds Managed By CDH Investments |  |  |  |
DISCONTINUED OPERATIONS |  |  |  |
Equity interest transferred (in percent) |  | 17.50% |  |
Equity interest transferred to number of entities | entity |  | 2 |  |
Consideration of disposal |  | $ 35.0 |  |
ATA Online and its direct shareholding companies, ATA Learning and Zhongxiao Zhixing | Discontinued operation, disposal by sale | Holding Companies Controlled By Certain Managements |  |  |  |
DISCONTINUED OPERATIONS |  |  |  |
Equity interest transferred (in percent) |  | 16.50% |  |
Equity interest transferred to number of entities | entity |  | 3 |  |
Consideration of disposal |  | $ 33.0 |  |
ATA Online and its direct shareholding companies, ATA Learning and Zhongxiao Zhixing | Discontinued operation, disposal by sale | the LHHY entity |  |  |  |
DISCONTINUED OPERATIONS |  |  |  |
Equity interest transferred (in percent) |  | 15.00% |  |
Consideration of disposal |  | $ 30.0 |  |
ATA Online and its direct shareholding companies, ATA Learning and Zhongxiao Zhixing | Discontinued operation, disposal by sale | New Beauty Holding Limited |  |  |  |
DISCONTINUED OPERATIONS |  |  |  |
Equity interest transferred (in percent) |  | 51.00% |  |
Consideration of disposal |  | $ 102.0 |  |

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