Fair Value Measurements - Reconciliation of Fair Value of Liabilities (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
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| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | |||
| Beginning balance | $ 9,998 | $ 12,237 | |
| Issuance of warrants | 0 | 544 | |
| Excess of fair value of warrants over proceeds | 0 | 362 | |
| Adjustment to fair value | (7,297) | (10,442) | |
| Reclassification to additional paid-in capital upon exercise of warrants | (2,701) | $ 0 | (2,701) |
| Ending balance | $ 0 | $ 0 | |
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- Definition Derivative Fair Value Gain (Loss) From Mark To Market Adjustment No definition available.
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- Definition The amount of the fair value of warrants that exceeded the proceeds received. No definition available.
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- Definition Warrant Derivative Liability Reclassified To Additional Paid In Capital No definition available.
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of issuances of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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