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SHARE-BASED COMPENSATION - Additional information (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2010
Feb. 28, 2022
Feb. 28, 2021
Feb. 29, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares authorized (as percent of total issued and outstanding) 5.00% 5.00%      
Shares authorized threshold (as percent of outstanding) 1.00% 1.00%      
Share-based compensation expense     $ 174,832 $ 204,945 $ 117,943
Share options, exercised intrinsic value     6,034 74,154 12,139
Share options, vested fair value     4,029 4,315 3,225
Share options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation expense     4,089 $ 3,979 $ 3,916
Unrecognized compensation expense     $ 6,828    
Unrecognized compensation expense recognition period (in years)     3 years 4 months 24 days    
Share options granted (in shares)     115,690 82,003 203,179
Share options low limit (per share)     $ 40.00 $ 208.41 $ 63.00
Share options high limit (per share)     $ 175.14 $ 239.01 $ 115.80
Non-vested shares - service condition          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares)     5,685,826 1,737,898 1,376,628
Share-based compensation expense     $ 125,596 $ 146,410 $ 114,027
Unrecognized compensation expense recognition period (in years)     3 years 8 months 12 days    
Non-vested shares fair value     $ 145,265 111,331 77,012
Non vested unrecognized compensation expense     $ 311,900    
Non-vested shares - performance condition          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares)     531,612    
Share-based compensation expense     $ 45,147 $ 54,556 $ 0
Unrecognized compensation expense recognition period (in years)     3 years 4 months 24 days    
Non-vested shares fair value     $ 65,961    
Non vested unrecognized compensation expense     $ 50,228    
Minimum | Share options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting (in years)     3 years 4 years 3 years
Share options expiration (in years)     8 years    
Minimum | Non-vested shares - service condition          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting (in years)     0 years 1 year 1 year
Minimum | Non-vested shares - performance condition          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting (in years)     0 years    
Maximum | Share options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting (in years)     6 years 6 years 4 years
Share options expiration (in years)     12 years    
Maximum | Non-vested shares - service condition          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting (in years)     8 years 6 years 8 years
Maximum | Non-vested shares - performance condition          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting (in years)     8 years