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Investments (Schedule of Investment Securities, Aggregated by Investment Type and Length of Time) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Jun. 29, 2014
Jun. 30, 2013
Jun. 24, 2012
Schedule of Available-for-sale Securities [Line Items]      
Fair Value, Less than 12 Months $ 23,602 $ 234,470  
Unrealized Loss, Less than 12 Months (39) (3,098)  
Fair Value, Greater than 12 Months 14,569 0  
Unrealized Loss, Greater than 12 Months (87) 0  
Fair Value, Total 38,171 234,470  
Unrealized Loss, Total (126) (3,098)  
Number of securities with an unrealized loss, Less than 12 Months 13 123  
Number of securities with an unrealized loss, Greater than 12 Months 7 0  
Number of securities with an unrealized loss, Total 20 123  
Available-for-sale Securities, Gross Realized Gain (Loss) 68 111 994
Municipal Bonds [Member]
      
Schedule of Available-for-sale Securities [Line Items]      
Fair Value, Less than 12 Months 7,906 126,926  
Unrealized Loss, Less than 12 Months (8) (1,314)  
Fair Value, Greater than 12 Months 1,520 0  
Unrealized Loss, Greater than 12 Months (4) 0  
Fair Value, Total 9,426 126,926  
Unrealized Loss, Total (12) (1,314)  
Corporate Bonds [Member]
      
Schedule of Available-for-sale Securities [Line Items]      
Fair Value, Less than 12 Months 15,696 102,010  
Unrealized Loss, Less than 12 Months (31) (1,765)  
Fair Value, Greater than 12 Months 13,049 0  
Unrealized Loss, Greater than 12 Months (83) 0  
Fair Value, Total 28,745 102,010  
Unrealized Loss, Total (114) (1,765)  
U.S. Agency Securities [Member]
      
Schedule of Available-for-sale Securities [Line Items]      
Fair Value, Less than 12 Months 0 0  
Unrealized Loss, Less than 12 Months 0 0  
Fair Value, Greater than 12 Months 0 0  
Unrealized Loss, Greater than 12 Months 0 0  
Fair Value, Total 0 0  
Unrealized Loss, Total 0 0  
Non-U.S. certificates of deposit [Member]
      
Schedule of Available-for-sale Securities [Line Items]      
Fair Value, Less than 12 Months 0 0  
Unrealized Loss, Less than 12 Months 0 0  
Fair Value, Greater than 12 Months 0 0  
Unrealized Loss, Greater than 12 Months 0 0  
Fair Value, Total 0 0  
Unrealized Loss, Total 0 0  
Non-U.S. Government Securities [Member]
      
Schedule of Available-for-sale Securities [Line Items]      
Fair Value, Less than 12 Months 0 5,534  
Unrealized Loss, Less than 12 Months 0 (19)  
Fair Value, Greater than 12 Months 0 0  
Unrealized Loss, Greater than 12 Months 0 0  
Fair Value, Total 0 5,534  
Unrealized Loss, Total $ 0 $ (19)