Common Stock Repurchases	3 Months Ended
Oct. 31, 2013
Common Stock Repurchases	10. Common Stock Repurchases On December 8, 2011, we announced that our board of directors had authorized the repurchase of up to $30 million of our common stock. The repurchase program will be funded using our available cash. During the three months ended October 31, 2013, we repurchased and retired 46,638 shares of common stock under this repurchase program for $3.7 million at an average purchase price of $79.97 per share. During the three months ended October 31, 2012, we repurchased and retired 56,324 shares of common stock under this repurchase program for $3.9 million at an average purchase price of $69.86 per share under this program. As of October 31, 2013, in total we have repurchased and retired 296,045 shares of common stock under this repurchase program for $20.1 million at an average purchase price of $67.98 per share.

10. Common Stock Repurchases

On December 8, 2011, we announced that our board of directors had authorized the repurchase of up to $30 million of our common stock. The repurchase program will be funded using our available cash. During the three months ended October 31, 2013, we repurchased and retired 46,638 shares of common stock under this repurchase program for $3.7 million at an average purchase price of $79.97 per share. During the three months ended October 31, 2012, we repurchased and retired 56,324 shares of common stock under this repurchase program for $3.9 million at an average purchase price of $69.86 per share under this program. As of October 31, 2013, in total we have repurchased and retired 296,045 shares of common stock under this repurchase program for $20.1 million at an average purchase price of $67.98 per share.