Quarterly report pursuant to Section 13 or 15(d)

Furniture, Equipment and Leasehold Improvements, Net - Summary of Furniture, Equipment and Leasehold Improvements, Net (Detail)

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Furniture, Equipment and Leasehold Improvements, Net - Summary of Furniture, Equipment and Leasehold Improvements, Net (Detail) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Property Plant And Equipment Useful Life And Values [Abstract]    
Leasehold improvements $ 3,920 $ 3,915
Furniture and equipment 6,367 5,802
Artwork 466 466
Total cost 10,753 10,183
Accumulated depreciation and amortization (8,168) (7,772)
Furniture, equipment and leasehold improvements, net $ 2,585 $ 2,411