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Common Stock Repurchases
6 Months Ended
May 31, 2017
Common Stock Repurchases [Abstract]  
Common Stock Repurchases
Common Stock Repurchases

We repurchased and retired 0.2 million shares of our common stock for $6.9 million in the three months ended May 31, 2017 and 0.9 million shares for $25.0 million in the six months ended May 31, 2017. In the three and six months ended May 31, 2016, we repurchased and retired 1.9 million shares for $48.3 million and 2.4 million shares for $60.0 million, respectively. The shares were repurchased in all periods as part of our Board of Directors authorized share repurchase program.

In March 2016, our Board of Directors authorized a new $100.0 million share repurchase program, which increased the total authorization to $214.5 million. As of May 31, 2017, there is $110.4 million remaining under this current authorization.