Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.8.0.1
Consolidated Balance Sheets (Parenthetical) - $ / shares
Feb. 28, 2018
Feb. 28, 2017
Preferred Stock, par value $ 0.01 $ 0.01
Preferred Stock, shares authorized 1,000,000 1,000,000
Preferred Stock, shares issued 0 0
Class A Common Stock [Member]    
Common Stock, par value $ 0.01 $ 0.01
Common Stock, shares authorized 322,000,000 322,000,000
Common Stock, shares issued 258,718,356 257,506,184
Treasury Stock, shares at cost 90,743,239 86,262,971
Class B Convertible Common Stock [Member]    
Common Stock, par value $ 0.01 $ 0.01
Common Stock, shares authorized 30,000,000 30,000,000
Common Stock, shares issued 28,335,387 28,358,527
Treasury Stock, shares at cost 5,005,800 5,005,800
Class 1 Common Stock [Member]    
Common Stock, par value $ 0.01 $ 0.01
Common Stock, shares authorized 25,000,000 25,000,000
Common Stock, shares issued 1,970 2,080