Furniture, Equipment and Leasehold Improvements, Net - Summary of Furniture, Equipment and Leasehold Improvements, Net (Detail) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Property Plant And Equipment Useful Life And Values [Abstract] | ||
| Leasehold improvements | $ 3,874 | $ 3,766 |
| Furniture and equipment | 5,157 | 4,496 |
| Artwork | 429 | 421 |
| Total cost | 9,460 | 8,683 |
| Accumulated depreciation and amortization | (7,035) | (6,329) |
| Furniture, equipment and leasehold improvements, net | $ 2,425 | $ 2,354 |