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INVESTMENTS (Tables) | 9 Months Ended
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Sep. 30, 2013
Investments, Debt and Equity Securities [Abstract] |
Scheduled maturities of investments classified as available-for-sale | Scheduled maturities of investments classified as available-for-sale as of September 30, 2013 were as follows (in thousands):
Maturity |  | Fair Value
Due: |  |
October 1, 2013 — September 30, 2014 |  | $ | — |
October 1, 2014 — September 30, 2018 |  | 606 |
October 1, 2018 — September 30, 2023 |  | — |
After September 30, 2023 |  | 21,069 |
Available-for-sale investments |  | $ | 21,675 |
Schedule of available for sale securities reconciliation | As of September 30, 2013, the amortized cost basis and fair value of investments classified as available-for-sale were as follows (in thousands):
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Auction rate securities | $ | 23,517 |  |  | $ | 164 |  |  | $ | (2,006 | ) |  | $ | 21,675 |
Available-for-sale investments | $ | 23,517 |  |  | $ | 164 |  |  | $ | (2,006 | ) |  | $ | 21,675 |
4. | INVESTMENTS — (CONTINUED)
As of December 31, 2012, the amortized cost basis and fair value of investments classified as available-for-sale were as follows (in thousands):
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Government-sponsored enterprise obligations | $ | 37 |  |  | $ | — |  |  | $ | — |  |  | $ | 37 |
Auction rate securities | 23,567 |  |  | 101 |  |  | (2,006 | ) |  | 21,662 |
Available-for-sale investments | $ | 23,604 |  |  | $ | 101 |  |  | $ | (2,006 | ) |  | $ | 21,699 |
Schedule of unrealized loss on investments | The components of the Company’s investments in an unrealized loss position for twelve months or longer were as follows (in thousands):
| September 30, 2013 |  | December 31, 2012
| Aggregate Fair Value |  | Gross Unrealized Losses |  | Aggregate Fair Value |  | Gross Unrealized Losses
Government-sponsored enterprise obligations | $ | — |  |  | $ | — |  |  | $ | 37 |  |  | $ | — |
Auction rate securities | 21,069 |  |  | (2,006 | ) |  | 21,119 |  |  | (2,006 | )
Investments in an unrealized loss position | $ | 21,069 |  |  | $ | (2,006 | ) |  | $ | 21,156 |  |  | $ | (2,006 | )

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- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + 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=27724398&loc=d3e27290-111563 + Details
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