XML 129 R99.htm IDEA: XBRL DOCUMENT v3.23.3
Share-Based Compensation - Summary of Binomial Option-Pricing Model To Determine The Fair Value Of The Share Option As Of The Grant Date (Detail) - $ / shares
9 Months Ended 12 Months Ended
Nov. 15, 2021
Aug. 25, 2020
May 31, 2021
May 31, 2023
Koolearn post ipo share option two [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average share price   $ 4.52 $ 2.14  
Exercise price   $ 4.39    
Expected volatility   49.50%    
Expected life   10 years    
Risk-free rate   0.44%    
Expected dividend yield   0.00%    
Koolearn post ipo share option three [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average share price $ 0.67     $ 0.32
Exercise price $ 0.67      
Expected volatility 61.00%      
Expected life 10 years      
Risk-free rate 1.63%      
Expected dividend yield 0.00%