Annual report pursuant to Section 13 and 15(d)

Property and Equipment (Details)

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Property and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 61,667 $ 71,877  
Less accumulated depreciation and amortization (28,684) (35,540)  
Property and equipment, net 32,983 36,337  
Depreciation and amortization expense related to property and equipment 5,700 5,800 $ 5,400
Land      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 7,155 7,156  
Building      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 4,886 4,886  
Building improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 20,018 20,018  
Leasehold improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 4,027 4,054  
Furniture and equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 3,611 4,197  
Computers and software      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 21,970 $ 31,566