Fixed Assets - Major Classifications of Fixed Assets and Related Useful Lives (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Fixed assets, gross	$ 56,570	$ 63,013
Less accumulated depreciation	(26,595)	(28,691)
Total Fixed assets, net	29,975	34,322
Land
Property, Plant and Equipment [Line Items]
Fixed assets, gross	5,892	5,892
Building and improvements
Property, Plant and Equipment [Line Items]
Fixed assets, gross	$ 25,990	25,755
Building and improvements | Minimum
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	1 year
Building and improvements | Maximum
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	40 years
Furniture and equipment
Property, Plant and Equipment [Line Items]
Fixed assets, gross	$ 8,760	14,938
Furniture and equipment | Minimum
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	1 year
Furniture and equipment | Maximum
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	20 years
Computer equipment
Property, Plant and Equipment [Line Items]
Fixed assets, gross	$ 6,446	5,944
Computer equipment | Minimum
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	1 year
Computer equipment | Maximum
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	5 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Fixed assets, gross	$ 9,482	$ 10,484
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	1 year
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	7 years