XML 57 R34.htm IDEA: XBRL DOCUMENT v2.4.0.6
Investments (Summary of Marketable Investments by Type) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 25, 2012
Jun. 26, 2011
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost $ 514,496 $ 688,233
Gross Unrealized Gains 4,775 7,093
Gross Unrealized Losses (234) (127)
Estimated Fair Value 519,037 695,199
Municipal Bonds [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 202,208 391,465
Gross Unrealized Gains 2,377 3,943
Gross Unrealized Losses (143) (10)
Estimated Fair Value 204,442 395,398
Corporate Bonds [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 179,893 207,241
Gross Unrealized Gains 1,912 2,312
Gross Unrealized Losses (88) (115)
Estimated Fair Value 181,717 209,438
Certificates of Deposit [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 65,000 10,003
Gross Unrealized Gains 0 12
Gross Unrealized Losses 0 0
Estimated Fair Value 65,000 10,015
Municipal Variable Rate Demand Notes [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost   295
Gross Unrealized Gains   0
Gross Unrealized Losses   0
Estimated Fair Value   295
Commercial Paper [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost   4,999
Gross Unrealized Gains   0
Gross Unrealized Losses   0
Estimated Fair Value   4,999
U.S. Agency Securities [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 64,283 67,244
Gross Unrealized Gains 486 807
Gross Unrealized Losses (2) (2)
Estimated Fair Value 64,767 68,049
Non-U.S. Government Securities [Member]
   
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 3,112 6,986
Gross Unrealized Gains 0 19
Gross Unrealized Losses (1) 0
Estimated Fair Value $ 3,111 $ 7,005