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Summary of Significant Accounting Policies - Effect of Error Correction (Details) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
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Dec. 31, 2012
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|---|---|---|
| Derivative warrant liabilities | $ 29,181 | $ 8,178 |
| Additional paid-in capital | 363,189 | 8,238 |
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Reclassification of Derivative Liability to Equity
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| Derivative warrant liabilities | 5,482 | |
| Additional paid-in capital | 10,934 | |
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Reclassification of Derivative Liability to Equity | As reported
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| Derivative warrant liabilities | 8,178 | |
| Additional paid-in capital | 8,238 | |
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Reclassification of Derivative Liability to Equity | Adjustment
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| Derivative warrant liabilities | (2,696) | |
| Additional paid-in capital | $ 2,696 |
| X | ||||||||||
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- Definition
Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be extinguished or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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