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Fair Value Measurements (Tables) | 9 Months Ended
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Sep. 30, 2013
Assets and Liabilities Measured at Fair Value on a Recurring Basis | A summary of financial instruments recognized at fair value on a recurring basis follows:
(In thousands) |  | Total |  |  | Quoted prices in active markets for identical assets (Level 1) |  |  | Other observable inputs (Level 2) |  |  | Unobservable inputs (Level 3) |
September 30, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and Cash Equivalents |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ | 2,895 |  |  | $ | 2,895 |  |  | $ | — |  |  | $ | — |
Money market funds |  |  | 393,700 |  |  |  | 393,700 |  |  |  | — |  |  |  | — |
December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and Cash Equivalents |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ | 3,893 |  |  | $ | 3,893 |  |  | $ | — |  |  | $ | — |
Money market funds |  |  | 203,500 |  |  |  | 203,500 |  |  |  | — |  |  |  | — |

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19190-110258 + Details
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