Goodwill and Intangible Assets - Schedule of Changes to Goodwill (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Goodwill and Intangible Assets Disclosure [Abstract] | ||
| Beginning balance | $ 10,503 | $ 11,152 |
| Translation adjustment | (493) | (649) |
| Ending balance | $ 10,010 | $ 10,503 |