Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Stockholders' Equity - Summary of Common Stock and Treasury Stock Issued (Details) - shares
 3 Months Ended 6 Months Ended
Aug. 31, 2020
May 31, 2020
Aug. 31, 2019
May 31, 2019
Aug. 31, 2020
Aug. 31, 2019
Class A            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Common Stock, beginning of period (in shares)   186,090,745     186,090,745  
Treasury Stock, beginning of period (in shares)   18,256,826     18,256,826  
Common Stock, end of period (in shares) 186,778,085       186,778,085  
Treasury Stock, end of period (in shares) 17,301,423       17,301,423  
Class B            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Common Stock, beginning of period (in shares)   28,300,206     28,300,206  
Treasury Stock, beginning of period (in shares)   5,005,800     5,005,800  
Common Stock, end of period (in shares) 28,286,561       28,286,561  
Treasury Stock, end of period (in shares) 5,005,800       5,005,800  
Common Stock | Class A            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Common Stock, beginning of period (in shares) 186,093,277 186,090,745 185,873,845 185,740,178 186,090,745 185,740,178
Conversion of shares (in shares) 684,808 2,532 6,267 133,667    
Common Stock, end of period (in shares) 186,778,085 186,093,277 185,880,112 185,873,845 186,778,085 185,880,112
Common Stock | Class B            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Common Stock, beginning of period (in shares) 28,297,674 28,300,206 28,322,364 28,322,419 28,300,206 28,322,419
Conversion of shares (in shares) (11,113) (2,532) (543) (55)    
Common Stock, end of period (in shares) 28,286,561 28,297,674 28,321,821 28,322,364 28,286,561 28,321,821
Common Stock | Class 1            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Common Stock, beginning of period (in shares) 1,694,803 1,692,227 1,018,119 1,149,624 1,692,227 1,149,624
Conversion of shares (in shares) (673,695) 0 (5,724) (133,612)    
Exercise of stock options (in shares) 0 2,576 0 2,107    
Common Stock, end of period (in shares) 1,021,108 1,694,803 1,012,395 1,018,119 1,021,108 1,012,395
Treasury Stock | Class A            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Treasury Stock, beginning of period (in shares) 18,118,879 18,256,826 18,636,987 18,927,966 18,256,826 18,927,966
Number of shares repurchased (in shares)     265,593      
Exercise of stock options (in shares) (781,075) (44,593) (258,628) (173,725)    
Employee stock purchases (in shares) (32,867)   (36,840)      
Treasury Stock, end of period (in shares) 17,301,423 18,118,879 18,604,964 18,636,987 17,301,423 18,604,964
Treasury Stock | Class A | Restricted stock units            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Vesting of stock units (in shares) (3,514) (76,019) (2,148) (88,683)    
Shares withheld to satisfy tax withholding requirements (in shares) 187 37,506 1,176 48,562 37,693 49,738
Treasury Stock | Class A | Performance share units            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Vesting of stock units (in shares)   (17,335)   (29,015)    
Shares withheld to satisfy tax withholding requirements (in shares) 0 9,433 0 17,439 9,433 17,439
Treasury Stock | Class A | Restricted shares            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Cancellation of restricted shares (in shares)       444    
Treasury Stock | Class B            
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Treasury Stock, beginning of period (in shares) 5,005,800 5,005,800 5,005,800 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 5,005,800 5,005,800 5,005,800