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 |