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Intangible Assets - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
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| Finite Lived Intangible Assets [Line Items] | |||
| Amortization of intangible assets | $ 0 | $ 0 | $ 299 |
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Manufacturing Process
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| Finite Lived Intangible Assets [Line Items] | |||
| Estimated useful life | 5 years | ||
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Customer Relationships
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| Finite Lived Intangible Assets [Line Items] | |||
| Estimated useful life | 5 years | ||