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Investments (Summary of Gross Unrealized Losses and Estimated Fair Value of Short-term Investments, Aggregated by Investment Type and Length of Time) (Details) $ in Thousands | Mar. 27, 2016 USD ($) | Jun. 28, 2015 USD ($)
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 Months | $ 62,245 | $ 99,840
Unrealized Loss, Less than 12 Months | (346) | (484)
Fair Value, Greater than 12 Months | 5,286 | 1,812
Unrealized Loss, Greater than 12 Months | (15) | (15)
Fair Value, Total | 67,531 | 101,652
Unrealized Loss, Total | $ (361) | $ (499)
Number of Securities with an Unrealized Loss, Less than 12 Months | 37 | 54
Number of Securities with an Unrealized Loss, Greater than 12 Months | 2 | 1
Number of Securities with an Unrealized Loss, Total | 39 | 55
Municipal Bonds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 Months | $ 12,447 | $ 53,204
Unrealized Loss, Less than 12 Months | (35) | (341)
Fair Value, Greater than 12 Months | 5,286 | 0
Unrealized Loss, Greater than 12 Months | (15) | 0
Fair Value, Total | 17,733 | 53,204
Unrealized Loss, Total | (50) | (341)
Corporate Bonds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Fair Value, Less than 12 Months | 49,798 | 46,636
Unrealized Loss, Less than 12 Months | (311) | (143)
Fair Value, Greater than 12 Months | 0 | 1,812
Unrealized Loss, Greater than 12 Months | 0 | (15)
Fair Value, Total | 49,798 | 48,448
Unrealized Loss, Total | $ (311) | $ (158)

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- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 + Details
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