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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 | 9 Months Ended | ||
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
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Sep. 30, 2013
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| Derivative Instruments Gain Loss [Line Items] | ||||
| Gain (loss) recognized in income | $ 1,300 | $ 200 | $ 1,300 | |
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Interest Expense
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| Derivative Instruments Gain Loss [Line Items] | ||||
| Gain (loss) recognized in income | $ 1,340 | $ 197 | $ 1,321 | $ (558) |