Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Research and Development Costs - Additional Information (Details)

v3.20.1
Summary of Significant Accounting Policies - Research and Development Costs - Additional Information (Details) - CNY (¥)
9 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Software developed for internal use      
Research and development costs      
Capitalized costs for the period ¥ 0 ¥ 0 ¥ 0