Fixed Assets - Summary of Fixed Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Land	$ 8,559	$ 7,263
Buildings and leasehold improvements	32,456	32,384
Furniture, fixtures and equipment	9,850	8,272
Capitalized software	1,305	1,305
Fixed assets, gross	52,170	49,224
Less accumulated depreciation and amortization	20,061	16,606
Fixed assets, net	$ 32,109	$ 32,618