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Debt - Effect of Derivative Financial Instrument on Condensed Consolidated Statements of Operations and Comprehensive Loss (Detail) (Warrant, USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
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Jun. 30, 2014
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Jun. 30, 2013
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Jun. 30, 2014
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Jun. 30, 2013
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| Derivative Instruments Gain Loss [Line Items] | ||||
| Income expense due to fair value adjustments related to warrants excluded from the computations of EPS | $ 1,200 | $ 0 | ||
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Interest Expense
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| Derivative Instruments Gain Loss [Line Items] | ||||
| Income expense due to fair value adjustments related to warrants excluded from the computations of EPS | $ 1,178 | $ (329) | $ (19) | $ (755) |