Income Taxes - Schedule of Reconciliations of Statutory U.S. Federal Income Tax to Effective Income Tax for Operations (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Income Tax Disclosure [Abstract] | |||
| Statutory U.S. federal income tax, Rate | 35.00% | 35.00% | 35.00% |
| Statutory U.S. Federal income tax at 35% | $ 4,296 | $ 28,058 | $ 44,913 |
| Partnership income not subject to tax | (2,691) | (27,076) | (42,843) |
| State and local income taxes, net of federal tax | 787 | 1,003 | 3,111 |
| Foreign income tax (benefit) provision | (284) | (169) | 328 |
| Total income tax provision (benefit) | $ 2,108 | $ 1,816 | $ 5,509 |