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Investments Investments (Summary of Investment Securities, Aggregated by Investment Type and Length of Time) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Sep. 29, 2013 | Sep. 23, 2012 | Jun. 30, 2013
Schedule of Available-for-sale Securities [Line Items] |  |  |
Fair Value, Less than 12 Months | $ 180,967 |  | $ 234,470
Unrealized Loss, Less than 12 Months | (1,553) |  | (3,098)
Fair Value, Greater than 12 Months | 0 |  | 0
Unrealized Loss, Greater than 12 Months | 0 |  | 0
Fair Value, Total | 180,967 |  | 234,470
Unrealized Loss, Total | (1,553) |  | (3,098)
Number of Securities with an Unrealized Loss, Less than 12 Months | 95 |  | 123
Number of Securities with an Unrealized Loss, Greater than 12 Months | 0 |  | 0
Number of Securities with an Unrealized Loss, Total | 95 |  | 123
Gain on sale of investments, net | 10 | 28 |
Municipal Bonds [Member] |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Fair Value, Less than 12 Months | 91,293 |  | 126,926
Unrealized Loss, Less than 12 Months | (502) |  | (1,314)
Fair Value, Greater than 12 Months | 0 |  | 0
Unrealized Loss, Greater than 12 Months | 0 |  | 0
Fair Value, Total | 91,293 |  | 126,926
Unrealized Loss, Total | (502) |  | (1,314)
Corporate Bonds [Member] |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Fair Value, Less than 12 Months | 86,129 |  | 102,010
Unrealized Loss, Less than 12 Months | (1,049) |  | (1,765)
Fair Value, Greater than 12 Months | 0 |  | 0
Unrealized Loss, Greater than 12 Months | 0 |  | 0
Fair Value, Total | 86,129 |  | 102,010
Unrealized Loss, Total | (1,049) |  | (1,765)
Non-U.S. Government Securities [Member] |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Fair Value, Less than 12 Months | 3,545 |  | 5,534
Unrealized Loss, Less than 12 Months | (2) |  | (19)
Fair Value, Greater than 12 Months | 0 |  | 0
Unrealized Loss, Greater than 12 Months | 0 |  | 0
Fair Value, Total | 3,545 |  | 5,534
Unrealized Loss, Total | $ (2) |  | $ (19)

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