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Available-For-Sale Investments | 12 Months Ended
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Jun. 30, 2013
Available-For-Sale Investments | C. Available-For-Sale Investments: At June 30, 2013 and 2012, the amortized cost and market value of the Company’s available-for-sale securities by major security type were as follows (in thousands):
|  | June 30, |
|  | 2013 |  |  | 2012 |
|  | Cost |  |  | Market |  |  | Cost |  |  | Market |
State and municipal debt securities |  | $ | 179,463 |  |  | $ | 179,764 |  |  | $ | 161,761 |  |  | $ | 162,740 |
Corporate debt securities |  |  | 12,804 |  |  |  | 12,817 |  |  |  | 22,693 |  |  |  | 22,802 |
Foreign corporate debt securities |  |  | 4,484 |  |  |  | 4,490 |  |  |  | 6,080 |  |  |  | 6,110 |
Certificates of deposit |  |  | 14,809 |  |  |  | 14,809 |  |  |  | 9,961 |  |  |  | 9,961 |
Equity securities |  |  | 29,472 |  |  |  | 89,647 |  |  |  | 29,472 |  |  |  | 94,664 |
|  | $ | 241,032 |  |  | $ | 301,527 |  |  | $ | 229,967 |  |  | $ | 296,277 |
At June 30, 2013 and 2012, all of the Company’s available-for-sale debt securities were valued using Level 2 inputs, while its equity securities were valued using Level 1 inputs. The Company had previously disclosed that available-for-sale debt securities were valued using Level 1 inputs and has determined that such securities should have been categorized as Level 2 securities. Certificates of deposit are carried at cost and are not subject to the fair value hierarchy. There were no transfers between Level 1 and Level 2 securities during fiscal 2013. Gross unrealized gains and unrealized losses on available-for-sale investments were $60.7 million and $218,000, respectively, at June 30, 2013. Gross unrealized gains and unrealized losses on available-for-sale investments were $66.3 million and $33,000, respectively, at June 30, 2012. The Company’s investment in equity securities consists of investments in the common stock and warrants of ChemoCentryx, Inc. (CCXI). The warrants are to purchase 150,000 shares of CCXI common stock at $20 per share and expire in February, 2022. The fair value of the warrants as of June 30, 2013 and 2012 were $1.5 million and $1.1 million, respectively, and were valued using Level 2 inputs. At June 30, 2013, the Company holds an approximate 15% interest in CCXI. Subsequent to June 30, 2013 the share price of CCXI has experienced a significant decline in value. Unrealized gains and losses on the Company’s available-for-sale debt securities are caused by interest rate changes. The Company has the ability and intent to hold its available-for-sale investments that are in an unrealized loss position until a recovery of fair value. The Company does not consider these investments to be other-than-temporarily impaired at June 30, 2013. At June 30, 2013, the Company’s investments in an unrealized loss position that have been determined to be temporarily impaired were as follows (in thousands):
Period of Unrealized Loss: |  | Fair Value |  |  | Unrealized Losses |
Less than one year |  | $ | 54,257 |  |  | $ | 218 |
Greater than one year |  |  | 0 |  |  |  | 0 |
|  | $ | 54,257 |  |  | $ | 218 |
Contractual maturities of available-for-sale debt securities are shown below (in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to recall or prepay obligations with or without call or prepayment penalties.
Year Ending June 30, 2013: |  |  |
Due within one year |  | $ | 79,504 |
Due one to five years |  |  | 132,376 |
|  | $ | 211,880 |
Proceeds from maturities or sales of available-for-sale securities were $103.6 million, $131.7 million and $173.5 million during fiscal 2013, 2012 and 2011, respectively. There were no material realized gains or losses on these sales. Realized gains and losses are determined on the specific identification method.

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- Definition The entire disclosure for investments in certain debt and equity 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=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 9 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Debt Security -URI http://asc.fasb.org/extlink&oid=6509901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 6: 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 7: 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=27724398&loc=d3e27161-111563 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27405-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Equity Security -URI http://asc.fasb.org/extlink&oid=6511694 + Details
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