Common stock repurchases	9 Months Ended
Apr. 30, 2012
Common stock repurchases	17. Common stock repurchases: On December 9, 2010, the Company announced that its Board of Directors had authorized the repurchase of up to $30,000 of the Company’s common stock. The repurchase program was funded using the Company’s available cash. During the nine months ended April 30, 2012, the Company repurchased and retired 286,390 shares of common stock under this repurchase program for $14,813 at an average purchase price of $51.73 per share. Upon completion of the program in the second quarter of fiscal year 2012, the Company ultimately repurchased and retired 586,679 shares of common stock for $30,000 at an average purchase price of $51.14 per share. On December 8, 2011, the Company announced that its Board of Directors had authorized the repurchase of up to an additional $30,000 of the Company’s common stock. The repurchase program will be funded using the Company’s available cash. During the three and nine months ended April 30, 2012, the Company repurchased and retired 3,350 and 18,082 shares of common stock, respectively, under this repurchase program for $183 and $982, respectively, at an average purchase price of $54.95 and $54.38 per share, respectively.

17. Common stock repurchases:

On December 9, 2010, the Company announced that its Board of Directors had authorized the repurchase of up to $30,000 of the Company’s common stock. The repurchase program was funded using the Company’s available cash. During the nine months ended April 30, 2012, the Company repurchased and retired 286,390 shares of common stock under this repurchase program for $14,813 at an average purchase price of $51.73 per share. Upon completion of the program in the second quarter of fiscal year 2012, the Company ultimately repurchased and retired 586,679 shares of common stock for $30,000 at an average purchase price of $51.14 per share.

On December 8, 2011, the Company announced that its Board of Directors had authorized the repurchase of up to an additional $30,000 of the Company’s common stock. The repurchase program will be funded using the Company’s available cash. During the three and nine months ended April 30, 2012, the Company repurchased and retired 3,350 and 18,082 shares of common stock, respectively, under this repurchase program for $183 and $982, respectively, at an average purchase price of $54.95 and $54.38 per share, respectively.