v3.20.1

Goodwill and Intangible Assets, Net - Intangible Assets - Additional Information - (Details) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 CNY (¥)
Intangible assets |  |  |  |
Impairment loss relating to intangible assets and other non-current assets |  | ¥ 8,932,439 | $ 1,283,065 |
Software platform of Project Shuang Chuang |  |  |  |
Intangible assets |  |  |  |
Impairment loss relating to intangible assets and other non-current assets | ¥ 0 | ¥ 8,932,439 |  | ¥ 0

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