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Property and Equipment, Net - Summary of Property and Equipment, Net (Detail) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross $ 13,180 $ 13,974
Less: Accumulated depreciation and amortization (12,168) (11,739)
Property and equipment, net 1,012 2,235
Furniture and Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross 231 231
Computer and Office Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross 7,216 7,965
Computer Software [Member]    
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross 5,041 5,086
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross $ 692 $ 692