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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
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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) |

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