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

Goodwill and Intangible Assets, Net - Goodwill - Additional Information (Details)

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Goodwill and Intangible Assets, Net - Goodwill - Additional Information (Details)
1 Months Ended 12 Months Ended
Nov. 30, 2013
CNY (¥)
Feb. 28, 2009
CNY (¥)
Dec. 31, 2017
CNY (¥)
Dec. 31, 2019
CNY (¥)
Dec. 31, 2018
CNY (¥)
Dec. 31, 2002
CNY (¥)
Dec. 31, 2019
USD ($)
Goodwill              
Goodwill     ¥ 32,009,025 ¥ 200,478,795 ¥ 0   $ 28,796,977
Disposal of goodwill         ¥ 32,009,025    
ATA Education              
Goodwill              
Goodwill acquired           ¥ 6,880,123  
Percentage of equity interest acquired           5.00%  
Beijing JDX and JDX BVI              
Goodwill              
Goodwill acquired   ¥ 16,542,727          
Xing Wei              
Goodwill              
Goodwill acquired ¥ 7,589,052            
Qihuang Huizhi              
Goodwill              
Goodwill acquired     ¥ 997,123        
Qihuang Huizhi | ATA Online              
Goodwill              
Percentage of equity interest acquired     65.00%        
Total consideration     ¥ 650,000        
Goodwill       997,123      
Puhua Technology              
Goodwill              
Percentage of equity interest sold     60.00%        
Total consideration     ¥ 2,000,000        
Disposal of goodwill     ¥ 1,512,081        
Huanqiuyimeng              
Goodwill              
Goodwill acquired       ¥ 200,478,795      
Percentage of equity interest acquired       100.00%     100.00%
Goodwill       ¥ 200,478,795