XML 22 R3.htm IDEA: XBRL DOCUMENT v3.7.0.1
Consolidated Balance Sheets (Parenthetical) - $ / shares
Mar. 31, 2017
Mar. 31, 2016
Treasury stock, shares 7,013,777 5,398,596
Common stock, Class A    
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 600,000,000 600,000,000
Common stock, shares issued 155,901,485 153,391,058
Common stock, shares outstanding 148,887,708 147,992,462
Non-voting common stock, Class B    
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 16,000,000 16,000,000
Common stock, shares issued 0 0
Common stock, shares outstanding 0 0
Restricted common stock, Class C    
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 5,000,000 5,000,000
Common stock, shares issued 0 0
Common stock, shares outstanding 0 0
Special voting common stock, Class E    
Common stock, par value $ 0.003 $ 0.003
Common stock, shares authorized 25,000,000 25,000,000
Common stock, shares issued 0 0
Common stock, shares outstanding 0 0