Estimated Future Amortization Expense (Detail) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|---|---|---|---|
| Goodwill and Intangible Assets Disclosure [Abstract] | |||
| 2016 | $ 56,315 | ||
| 2017 | 33,704 | ||
| 2018 | 18,400 | ||
| 2019 | 17,456 | ||
| 2020 | 17,396 | ||
| Thereafter | 31,259 | ||
| Total other intangibles, net | $ 174,530 | $ 243,640 | $ 315,490 |