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Property and Equipment (Detail) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Property, Plant and Equipment [Line Items]    
Property and equipment, gross [1] $ 3,996 $ 22,434
Less: accumulated depreciation and amortization [1] (1,598) (18,384)
Property and equipment, net [1] 2,398 4,050
Computer and Other Related Equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross [1] 1,012 14,939
Purchased and Internally Developed Software    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross [1] 2,699 3,090
Furniture and Fixtures    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross [1] 260 1,273
Leasehold Improvements    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross [1]   1,732
Construction in Progress    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross [1] $ 25 $ 1,400
[1] Includes the original cost of fully depreciated fixed assets which was $13.6 million at December 31, 2022.