Goodwill and Intangible Assets - Estimated Annual Amortization Expense for Intangible Assets (Detail) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Goodwill And Intangible Assets Disclosure [Abstract] | ||
| 2016 | $ 10,927 | |
| 2017 | 10,781 | |
| 2018 | 10,728 | |
| 2019 | 10,691 | |
| 2020 | 10,201 | |
| Thereafter | 39,844 | |
| Finite lived intangible assets, Net | $ 93,172 | $ 26,334 |