Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Summary of Common Stock and Treasury Stock Issued (Details)

v3.21.1
Stockholders' Equity - Summary of Common Stock and Treasury Stock Issued (Details) - shares
 12 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2019
Class A Common Stock      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Common Stock, beginning of period (in shares) 186,090,745    
Treasury Stock, beginning of period (in shares) 18,256,826    
Share repurchases (in shares) 0 265,593 2,352,145
Common Stock, end of period (in shares) 187,204,280 186,090,745  
Treasury Stock, end of period (in shares) 17,070,550 18,256,826  
Class B Convertible Common Stock      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Common Stock, beginning of period (in shares) 28,300,206    
Treasury Stock, beginning of period (in shares) 5,005,800    
Common Stock, end of period (in shares) 28,270,288 28,300,206  
Treasury Stock, end of period (in shares) 5,005,800 5,005,800  
Class 1 Common Stock      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Common Stock, beginning of period (in shares) 1,692,227    
Common Stock, end of period (in shares) 612,936 1,692,227  
Common Stock | Class A Common Stock      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Common Stock, beginning of period (in shares) 186,090,745 185,740,178 258,718,356
Retirement of treasury shares (in shares)     (74,000,000)
Conversion of shares (in shares) 1,113,535 350,567 12,968
Exercise of stock options (in shares)     1,008,854
Common Stock, end of period (in shares) 187,204,280 186,090,745 185,740,178
Common Stock | Class B Convertible Common Stock      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Common Stock, beginning of period (in shares) 28,300,206 28,322,419 28,335,387
Conversion of shares (in shares) (29,918) (22,213) (12,968)
Common Stock, end of period (in shares) 28,270,288 28,300,206 28,322,419
Common Stock | Class 1 Common Stock      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Common Stock, beginning of period (in shares) 1,692,227 1,149,624 1,970
Conversion of shares (in shares) (1,083,617) (328,354) 0
Exercise of stock options (in shares) 4,326 870,957 1,147,654
Common Stock, end of period (in shares) 612,936 1,692,227 1,149,624
Treasury Stock | Class A Common Stock      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Treasury Stock, beginning of period (in shares) 18,256,826 18,927,966 90,743,239
Retirement of treasury shares (in shares)     (74,000,000)
Share repurchases (in shares)   265,593 2,352,145
Exercise of stock options (in shares) (1,020,853) (747,527)  
Employee stock purchases (in shares) (67,801) (69,324) (76,844)
Grant of restricted stock awards (in shares)     (3,914)
Treasury Stock, end of period (in shares) 17,070,550 18,256,826 18,927,966
Treasury Stock | Class A Common Stock | Restricted stock units      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Vesting of stock units (in shares) (80,287) (91,311) (24,308)
Shares withheld to satisfy tax withholding requirements (in shares) 37,933 49,900 15,409
Treasury Stock | Class A Common Stock | Performance share units      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Vesting of stock units (in shares) (17,335) (29,015) (62,352)
Shares withheld to satisfy tax withholding requirements (in shares) 9,433 17,439 44,016
Treasury Stock | Class A Common Stock | Restricted stock awards      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Cancellation of restricted shares (in shares)   444  
Treasury Stock | Class B Convertible Common Stock      
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Treasury Stock, beginning of period (in shares) 5,005,800 5,005,800 5,005,800
Treasury Stock, end of period (in shares) 5,005,800 5,005,800 5,005,800