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 | |