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Subsequent Event - Additional Information (Detail) (USD $)
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12 Months Ended | 0 Months Ended |
|---|---|---|
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Dec. 31, 2014
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Feb. 23, 2015
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| Subsequent Event [Line Items] | ||
| Expected lease commencement period | 2015-05 | |
| Lease agreement date | Feb. 23, 2015 | |
| Subsequent Event [Member] | ||
| Subsequent Event [Line Items] | ||
| Term of lease | 61 months | |
| Initial monthly base rent | $ 13,000 | |
| Area of leased warehouse distribution facility | 14,384 |