Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.4
Stockholders' Equity - Summary of Common Stock and Treasury Stock Issued (Details) - shares
 3 Months Ended 9 Months Ended
Nov. 30, 2020
Aug. 31, 2020
May 31, 2020
Nov. 30, 2019
Aug. 31, 2019
May 31, 2019
Nov. 30, 2020
Nov. 30, 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) 187,196,051           187,196,051  
Treasury Stock, end of period (in shares) 17,190,040           17,190,040  
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) 28,277,517           28,277,517  
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) 186,778,085 186,093,277 186,090,745 185,880,112 185,873,845 185,740,178 186,090,745 185,740,178
Conversion of shares (in shares) 417,966 684,808 2,532 191,233 6,267 133,667    
Common Stock, end of period (in shares) 187,196,051 186,778,085 186,093,277 186,071,345 185,880,112 185,873,845 187,196,051 186,071,345
Common Stock | Class B                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Common Stock, beginning of period (in shares) 28,286,561 28,297,674 28,300,206 28,321,821 28,322,364 28,322,419 28,300,206 28,322,419
Conversion of shares (in shares) (9,044) (11,113) (2,532) (2,215) (543) (55)    
Common Stock, end of period (in shares) 28,277,517 28,286,561 28,297,674 28,319,606 28,321,821 28,322,364 28,277,517 28,319,606
Common Stock | Class 1                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Common Stock, beginning of period (in shares) 1,021,108 1,694,803 1,692,227 1,012,395 1,018,119 1,149,624 1,692,227 1,149,624
Conversion of shares (in shares) (408,922) (673,695) 0 (189,018) (5,724) (133,612)    
Exercise of stock options (in shares) 0 0 2,576 0 0 2,107    
Common Stock, end of period (in shares) 612,186 1,021,108 1,694,803 823,377 1,012,395 1,018,119 612,186 823,377
Treasury Stock | Class A                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Treasury Stock, beginning of period (in shares) 17,301,423 18,118,879 18,256,826 18,604,964 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) (110,717) (781,075) (44,593) (38,154) (258,628) (173,725)    
Employee stock purchases (in shares)   (32,867)     (36,840)      
Treasury Stock, end of period (in shares) 17,190,040 17,301,423 18,118,879 18,566,568 18,604,964 18,636,987 17,190,040 18,566,568
Treasury Stock | Class A | Restricted stock units                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Vesting of stock units (in shares) (666) (3,514) (76,019) (242) (2,148) (88,683)    
Shares withheld to satisfy tax withholding requirements (in shares) 240 187 37,506 94 1,176 48,562 37,933 49,832
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 0 9,433 0 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 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 5,005,800 5,005,800