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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
Mar. 31, 2024
Mar. 31, 2023
Disaggregation of Revenue [Line Items]    
Revenues by contract type and operating segment $ 46,823 $ 55,063
Data and Analytics Services [Member]    
Disaggregation of Revenue [Line Items]    
Revenues by contract type and operating segment 8,067 9,395
Data and Analytics Services [Member] | Time-and-Material Contract [Member]    
Disaggregation of Revenue [Line Items]    
Revenues by contract type and operating segment 6,111 6,701
Data and Analytics Services [Member] | Fixed-Price Contract [Member]    
Disaggregation of Revenue [Line Items]    
Revenues by contract type and operating segment 1,956 2,694
IT Staffing Services [Member]    
Disaggregation of Revenue [Line Items]    
Revenues by contract type and operating segment 38,756 45,668
IT Staffing Services [Member] | Time-and-Material Contract [Member]    
Disaggregation of Revenue [Line Items]    
Revenues by contract type and operating segment 38,756 45,668
IT Staffing Services [Member] | Fixed-Price Contract [Member]    
Disaggregation of Revenue [Line Items]    
Revenues by contract type and operating segment $ 0 $ 0