Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Estimated useful life of the acquired intangible assets | 6 years 7 months 6 days | |
| Amortization expense | $ 0.4 | $ 0.7 |
| Trade Names [Member] | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Estimated useful life of the acquired intangible assets | 3 years | |
| Developed Technology [Member] | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Estimated useful life of the acquired intangible assets | 7 years | |
| Customer Relationships [Member] | ||
| Acquired Finite-Lived Intangible Assets [Line Items] | ||
| Estimated useful life of the acquired intangible assets | 7 years | |