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Fair Value of Financial Instruments (Financial Instruments Carried at Fair Value) (Details) (USD $) In Thousands, unless otherwise specified | Sep. 28, 2014 | Jun. 29, 2014
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value transfers level 1 to level 2 | $ 0 |
Fair value transfers, level 2 to level 1 | 0 |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 908,543 | 875,642
Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | 18,879 | 40,031
Short-term investments | 908,543 | 875,642
Total assets | 927,422 | 915,673
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | 18,714 | 40,031
Short-term investments | 0 | 0
Total assets | 18,714 | 40,031
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | 165 | 0
Short-term investments | 908,543 | 875,642
Total assets | 908,708 | 875,642
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | 0 | 0
Short-term investments | 0 | 0
Total assets | 0 | 0
Municipal Bonds [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 297,818 | 294,180
Municipal Bonds [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 297,818 | 294,180
Municipal Bonds [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 0 | 0
Municipal Bonds [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 297,818 | 294,180
Municipal Bonds [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 0 | 0
Corporate Bonds [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 215,326 | 202,346
Corporate Bonds [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 215,326 | 202,346
Corporate Bonds [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 0 | 0
Corporate Bonds [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 215,326 | 202,346
Corporate Bonds [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 0 | 0
U.S. Agency Securities [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 19,079 | 19,135
U.S. Agency Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 19,079 | 19,135
U.S. Agency Securities [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 0 | 0
U.S. Agency Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 19,079 | 19,135
U.S. Agency Securities [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 0 | 0
Non-U.S. Certificates of Deposit [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 373,303 | 352,928
Non-U.S. Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 373,303 | 352,928
Non-U.S. Certificates of Deposit [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 0 | 0
Non-U.S. Certificates of Deposit [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 373,303 | 352,928
Non-U.S. Certificates of Deposit [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 0 | 0
Non-U.S. Government Securities [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 3,017 | 7,053
Non-U.S. Government Securities [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 3,017 | 7,053
Non-U.S. Government Securities [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 0 | 0
Non-U.S. Government Securities [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 3,017 | 7,053
Non-U.S. Government Securities [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Short-term investments | 0 | 0
Non-U.S. Certificates of Deposit [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | 165 | 0
Non-U.S. Certificates of Deposit [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | 0 | 0
Non-U.S. Certificates of Deposit [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | 165 | 0
Non-U.S. Certificates of Deposit [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | 0 | 0
Money Market Funds [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | 18,714 | 40,031
Money Market Funds [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | 18,714 | 40,031
Money Market Funds [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | 0 | 0
Money Market Funds [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash equivalents | $ 0 | $ 0

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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- Definition Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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