Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

v3.20.2
Stockholders' Equity (Details) - shares
 3 Months Ended
May 31, 2020
May 31, 2019
Class A Common Stock [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Common Stock, beginning of period 186,090,745  
Treasury Stock, beginning of period 18,256,826  
Common Stock, end of period 186,093,277  
Treasury Stock, end of period 18,118,879  
Common Class B [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Common Stock, beginning of period 28,300,206  
Treasury Stock, beginning of period 5,005,800  
Common Stock, end of period 28,297,674  
Treasury Stock, end of period 5,005,800  
Common Stock [Member] | Class A Common Stock [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Common Stock, beginning of period 186,090,745 185,740,178
Conversion of shares 2,532 133,667
Exercise of stock options 0 0
Common Stock, end of period 186,093,277 185,873,845
Common Stock [Member] | Class A Common Stock [Member] | Restricted stock units [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Vesting of stock units 0 0
Common Stock [Member] | Class A Common Stock [Member] | Performance share units [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Vesting of stock units 0 0
Common Stock [Member] | Class A Common Stock [Member] | Restricted shares [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Cancellation of restricted shares   0
Common Stock [Member] | Common Class B [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Common Stock, beginning of period 28,300,206 28,322,419
Conversion of shares (2,532) (55)
Exercise of stock options 0 0
Common Stock, end of period 28,297,674 28,322,364
Common Stock [Member] | Common Class B [Member] | Restricted stock units [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Vesting of stock units 0 0
Common Stock [Member] | Common Class B [Member] | Performance share units [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Vesting of stock units 0 0
Common Stock [Member] | Common Class B [Member] | Restricted shares [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Cancellation of restricted shares   0
Common Stock [Member] | Class 1 Common Stock [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Common Stock, beginning of period 1,692,227 1,149,624
Conversion of shares 0 (133,612)
Exercise of stock options 2,576 2,107
Common Stock, end of period 1,694,803 1,018,119
Common Stock [Member] | Class 1 Common Stock [Member] | Restricted stock units [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Vesting of stock units 0 0
Common Stock [Member] | Class 1 Common Stock [Member] | Performance share units [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Vesting of stock units 0 0
Common Stock [Member] | Class 1 Common Stock [Member] | Restricted shares [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Cancellation of restricted shares   0
Treasury Stock [Member] | Class A Common Stock [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Treasury Stock, beginning of period 18,256,826 18,927,966
Conversion of shares 0 0
Exercise of stock options (44,593) (173,725)
Treasury Stock, end of period 18,118,879 18,636,987
Treasury Stock [Member] | Class A Common Stock [Member] | Restricted stock units [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Vesting of stock units (76,019) (88,683)
Shares withheld to satisfy tax withholding requirements 37,506 48,562
Treasury Stock [Member] | Class A Common Stock [Member] | Performance share units [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Vesting of stock units (17,335) (29,015)
Shares withheld to satisfy tax withholding requirements 9,433 17,439
Treasury Stock [Member] | Class A Common Stock [Member] | Restricted shares [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Cancellation of restricted shares   444
Treasury Stock [Member] | Common Class B [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Treasury Stock, beginning of period 5,005,800 5,005,800
Conversion of shares 0 0
Exercise of stock options 0 0
Treasury Stock, end of period 5,005,800 5,005,800
Treasury Stock [Member] | Common Class B [Member] | Restricted stock units [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Vesting of stock units 0 0
Treasury Stock [Member] | Common Class B [Member] | Performance share units [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Vesting of stock units 0 0
Treasury Stock [Member] | Common Class B [Member] | Restricted shares [Member]    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Cancellation of restricted shares   0