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Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)
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May 31, 2011
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Feb. 28, 2011
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|---|---|---|
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Class A Common Stock [Member]
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| STOCKHOLDERS' EQUITY: | ||
| Common Stock, par value | $ 0.01 | $ 0.01 |
| Common Stock, shares authorized | 322,000,000 | 322,000,000 |
| Common Stock, shares issued | 232,676,024 | 230,290,798 |
| Treasury Stock, shares at cost | 42,012,761 | 42,739,831 |
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Class B Convertible Common Stock [Member]
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||
| STOCKHOLDERS' EQUITY: | ||
| Common Stock, par value | $ 0.01 | $ 0.01 |
| Common Stock, shares authorized | 30,000,000 | 30,000,000 |
| Common Stock, shares issued | 28,605,058 | 28,617,758 |
| Treasury Stock, shares at cost | 5,005,800 | 5,005,800 |