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CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables) | 3 Months Ended
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Mar. 31, 2016
Cash and Cash Equivalents [Abstract] |
Schedule of Cash, Cash Equivalents and Investments | Investments as of March 31, 2016 and December 31, 2015 consisted of the following (in thousands):
|  | Amortized |  | Unrealized |  | Aggregate Fair
Investment Classification |  | Cost |  | Gains |  | (Losses) |  | Market Value
March 31, 2016 |  |  |  |  |  |  |  |
Certificates of deposit |  | $ | 11,513 |  |  | $ | 8 |  |  | $ | (3 | ) |  | $ | 11,518 |
Corporate bonds |  | 229,513 |  |  | — |  |  | (122 | ) |  | 229,391 |
U.S. Government bonds |  | 44,962 |  |  | — |  |  | (281 | ) |  | 44,681 |
|  | $ | 285,988 |  |  | $ | 8 |  |  | $ | (406 | ) |  | $ | 285,590 |
December 31, 2015 |  |  |  |  |  |  |  |
Certificates of deposit |  | $ | 11,532 |  |  | $ | 3 |  |  | $ | (14 | ) |  | $ | 11,521 |
Corporate bonds |  | 233,848 |  |  | — |  |  | (139 | ) |  | 233,709 |
U.S. Government bonds |  | 54,953 |  |  | 1 |  |  | (16 | ) |  | 54,938 |
|  | $ | 300,333 |  |  | $ | 4 |  |  | $ | (169 | ) |  | $ | 300,168 |

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- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
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