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Investments (Tables) | 9 Months Ended
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Mar. 31, 2013
Investments, Debt and Equity Securities [Abstract] |
Summary of Marketable Investments by Type | The following tables provide a summary of marketable investments by type (in thousands):
|  | March 31, 2013
|  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
Municipal bonds |  | $ | 246,957 |  |  | $ | 1,496 |  |  | $ | (61 | ) |  | $ | 248,392 |
Corporate bonds |  | 176,963 |  |  | 2,468 |  |  | (101 | ) |  | 179,330 |
Certificates of deposit |  | 265,000 |  |  | — |  |  | — |  |  | 265,000 |
U.S. agency securities |  | 56,391 |  |  | 333 |  |  | (1 | ) |  | 56,723 |
Non-U.S. government securities |  | 9,139 |  |  | 29 |  |  | — |  |  | 9,168 |
Total |  | $ | 754,450 |  |  | $ | 4,326 |  |  | $ | (163 | ) |  | $ | 758,613 |
|  | June 24, 2012
|  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
Municipal bonds |  | $ | 209,626 |  |  | $ | 2,036 |  |  | $ | (58 | ) |  | $ | 211,604 |
Corporate bonds |  | 144,942 |  |  | 1,848 |  |  | (123 | ) |  | 146,667 |
Certificates of deposit |  | 130,000 |  |  | — |  |  | — |  |  | 130,000 |
U.S. agency securities |  | 68,156 |  |  | 450 |  |  | (7 | ) |  | 68,599 |
Non-U.S. government securities |  | 8,746 |  |  | 15 |  |  | (3 | ) |  | 8,758 |
Total |  | $ | 561,470 |  |  | $ | 4,349 |  |  | $ | (191 | ) |  | $ | 565,628 |
Schedule of Unrealized Loss on Investments | The following tables present the gross unrealized losses and estimated fair value of the Company's investment securities, aggregated by investment type and length of time that individual investments securities have been in a continuous unrealized loss position (in thousands):
|  | March 31, 2013
|  | Less than 12 Months |  | Greater than 12 Months |  | Total
|  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss
Municipal bonds |  | $ | 25,869 |  |  | $ | (61 | ) |  | $ | — |  |  | $ | — |  |  | $ | 25,869 |  |  | $ | (61 | )
Corporate bonds |  | 37,174 |  |  | (101 | ) |  | — |  |  | — |  |  | 37,174 |  |  | (101 | )
U.S. agency securities |  | 2,002 |  |  | (1 | ) |  | — |  |  | — |  |  | 2,002 |  |  | (1 | )
Total |  | $ | 65,045 |  |  | $ | (163 | ) |  | $ | — |  |  | $ | — |  |  | $ | 65,045 |  |  | $ | (163 | )
Number of securities with an unrealized loss |  |  |  | 33 |  |  |  |  | — |  |  |  |  | 33 |
|  | June 24, 2012
|  | Less than 12 Months |  | Greater than 12 Months |  | Total
|  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss
Municipal bonds |  | $ | 30,102 |  |  | $ | (58 | ) |  | $ | — |  |  | $ | — |  |  | $ | 30,102 |  |  | $ | (58 | )
Corporate bonds |  | 30,550 |  |  | (123 | ) |  | — |  |  | — |  |  | 30,550 |  |  | (123 | )
U.S. agency securities |  | 3,014 |  |  | (7 | ) |  | — |  |  | — |  |  | 3,014 |  |  | (7 | )
Non-U.S. government securities |  | 1,543 |  |  | (3 | ) |  | — |  |  | — |  |  | 1,543 |  |  | (3 | )
Total |  | $ | 65,209 |  |  | $ | (191 | ) |  | $ | — |  |  | $ | — |  |  | $ | 65,209 |  |  | $ | (191 | )
Number of securities with an unrealized loss |  |  |  | 33 |  |  |  |  | — |  |  |  |  | 33 |
Contractual Maturities of Marketable Investments | The contractual maturities of marketable investments at March 31, 2013 were as follows (in thousands):
| March 31, 2013
| Within One Year |  | After One, Within Five Years |  | After Five, Within Ten Years |  | After Ten Years |  | Total
Municipal bonds | $ | 59,355 |  |  | $ | 189,037 |  |  | $ | — |  |  | $ | — |  |  | $ | 248,392 |
Corporate bonds | 25,404 |  |  | 151,426 |  |  | 2,500 |  |  | — |  |  | 179,330 |
Certificates of deposit | 265,000 |  |  | — |  |  | — |  |  | — |  |  | 265,000 |
U.S. agency securities | 20,145 |  |  | 36,578 |  |  | — |  |  | — |  |  | 56,723 |
Non-U.S. government securities | 3,012 |  |  | 6,156 |  |  | — |  |  | — |  |  | 9,168 |
Total | $ | 372,916 |  |  | $ | 383,197 |  |  | $ | 2,500 |  |  | $ | — |  |  | $ | 758,613 |

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&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 3 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27198-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: 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=6872113&loc=d3e27337-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19, 20, 21 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 + Details
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- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 + Details
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