Goodwill and Other Intangible Assets - Schedule of Estimated Amortization Expense (Detail) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract] | ||
| 2016 | $ 2,285 | |
| 2017 | 2,034 | |
| 2018 | 1,915 | |
| 2019 | 1,880 | |
| 2020 | 1,837 | |
| 2021 and thereafter | 1,434 | |
| Total | $ 11,385 | $ 1,156 |