Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Fair Value Measurements Of Financial Instruments [Line Items] | ||
| Book value of debt | $ 169,014 | |
| Fair value of debt | 79,912 | $ 42,074 |
| Book value of capital lease | 6,854 | 4,341 |
| Fair value of capital lease | 9,214 | 4,960 |
| Book Value [Member] | ||
| Fair Value Measurements Of Financial Instruments [Line Items] | ||
| Book value of debt | 79,912 | 42,266 |
| Long term legal settlement | 960 | 1,007 |
| Fair Value [Member] | ||
| Fair Value Measurements Of Financial Instruments [Line Items] | ||
| Long term legal settlement | $ 960 | $ 1,007 |