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Common Stock Repurchases	6 Months Ended
Common Stock Repurchases	May 31, 2014
Common Stock Repurchases [Abstract]
Common Stock Repurchases	Common Stock Repurchases We repurchased and retired 1.6 million shares of our common stock for $35.0 million in the six months ended May 31, 2014. The shares were repurchased as part of our Board of Directors authorized $100.0 million share repurchase program. In the six months ended May 31, 2013, we repurchased 7,613,000 shares of our common stock for $169.5 million.