Income Taxes - Components of Income (Loss) Before Income Taxes and Equity in Net Loss of Foreign Affiliate (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Income Tax Disclosure [Abstract] | |||
| United States | $ 77,993 | $ 120,470 | $ (15,772) |
| Foreign | 2,171 | 7,853 | (9,807) |
| Income (loss) before income taxes | $ 80,164 | $ 128,323 | $ (25,579) |