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COMMON SHARES (Details)
$ in Thousands
 12 Months Ended
Jan. 22, 2021
USD ($)
Dec. 28, 2020
shares
Nov. 20, 2020
USD ($)
Nov. 12, 2020
shares
Feb. 28, 2022
USD ($)
class
shares
Feb. 28, 2021
USD ($)
shares
Feb. 29, 2020
shares
Apr. 19, 2021
USD ($)
Apr. 28, 2020
USD ($)
Classes of common shares | class         2        
Proceeds from Issuance of Private Placement | $           $ 2,500,000      
Common Class A                  
Common Stock, Voting Rights         one        
Shares converted (in shares)         17,785,600 2,000 3,614,796    
Shares issued   4,984,051   7,575,756 2,455,216 2,240,585 2,239,239    
Conversion of Stock, Shares Issued         0 0 401,074    
Maximum repurchase amount | $               $ 1,000,000  
Repurchase of shares         1,506,667 61,667      
Aggregate consideration | $         $ 196,277 $ 9,852      
Proceeds from Issuance of Private Placement | $ $ 1,000,000   $ 1,500,000            
Common Class A | Share options                  
Exercise of share options (in shares)         56,296 359,178 114,793    
Common Class A | Maximum                  
Maximum repurchase amount | $                 $ 500,000
Common Class B                  
Common Stock, Voting Rights         ten        
Conversion ratio of Class B into Class A         1        
Shares converted (in shares)         17,785,600 2,000 3,614,796    
ADS                  
Shares issued         7,365,648 6,721,755 6,717,717    
Conversion of Stock, Shares Issued         0 0 1,203,222    
ADS | Share options                  
Exercise of share options (in shares)         168,888 1,077,534 344,379