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Capital Stock (Tables)
 6 Months Ended
Jan. 26, 2013
Stockholders' Equity Note [Abstract]  
Schedule of Share Repurchases Under Current and Previously Authorized Share Repurchase Programs
During fiscal 2011, fiscal 2012 and for the quarter ended October 27, 2012, the Company made the following repurchases under its current and previously authorized share repurchase programs:
 
Period
 
Number of Shares Repurchased
 
Total Consideration
(Dollars in thousands)
 
Average Price Per Share
Fiscal 2011
 
5,389,500

 
$
64,548

 
$
11.98

Fiscal 2012
 
597,700

 
$
12,960

 
$
21.68

Quarter Ended October 27, 2012
 
1,047,000

 
$
15,203

 
$
14.52