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Revenue from Contracts with Customers - Summary of Disaggregation of Our Revenues by Contract Type and Operating Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Disaggregation of Revenue [Line Items]        
Revenues by contract type and operating segment $ 49,534 $ 52,204 $ 96,357 $ 107,267
Data and Analytics Services [Member]        
Disaggregation of Revenue [Line Items]        
Revenues by contract type and operating segment 8,876 8,773 16,943 18,168
Data and Analytics Services [Member] | Time-and-Material Contract [Member]        
Disaggregation of Revenue [Line Items]        
Revenues by contract type and operating segment 6,183 6,438 12,294 13,139
Data and Analytics Services [Member] | Fixed-Price Contract [Member]        
Disaggregation of Revenue [Line Items]        
Revenues by contract type and operating segment 2,693 2,335 4,649 5,029
IT Staffing Services [Member]        
Disaggregation of Revenue [Line Items]        
Revenues by contract type and operating segment 40,658 43,431 79,414 89,099
IT Staffing Services [Member] | Time-and-Material Contract [Member]        
Disaggregation of Revenue [Line Items]        
Revenues by contract type and operating segment 40,658 43,431 79,414 89,099
IT Staffing Services [Member] | Fixed-Price Contract [Member]        
Disaggregation of Revenue [Line Items]        
Revenues by contract type and operating segment $ 0 $ 0 $ 0 $ 0