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Investments (Tables)
3 Months Ended
Oct. 29, 2011
Summary of Short-term and Non-current Investments by Maturity Date
The following table summarizes the Company’s short-term and non-current investments by maturity date that were recorded in the consolidated balance sheets as of October 29, 2011 and July 30, 2011.

    
October 29, 2011
   
July 30, 2011
 
   
<1 year
   
1- 3
years
   
Over 3
years
   
Total
   
<1 year
   
1- 3
years
   
Over 3
years
   
Total
 
   
(millions)
 
Available-for-sale investments - short-term:
                                               
Municipal bonds
  $ 42.4     $     $     $ 42.4     $ 52.7     $     $     $ 52.7  
Restricted cash
    1.4                   1.4       1.4                   1.4  
Total short-term investments
    43.8                   43.8       54.1                   54.1  
                                                                 
Available-for-sale investments - non-current:
                                                               
Municipal bonds
          109.6       27.4       137.0             102.7       23.8       126.5  
Auction rate securities
                8.9       8.9                   12.0       12.0  
Total non-current available-for-sale investments
          109.6       36.3       145.9             102.7       35.8       138.5  
Other non-current investments
    1.9                   1.9                          
Total non-current investments
    1.9       109.6       36.3       147.8             102.7       35.8       138.5  
Total Investments
  $ 45.7     $ 109.6     $ 36.3     $ 191.6     $ 54.1     $ 102.7     $ 35.8     $ 192.6