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Business Segments and Geographic Information - Summary of Revenue from External Customers (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |
Revenues | $ 198,943 | $ 201,098 | $ 242,238
Equipment, Enterprise Software and Leasehold Improvements, net | 1,998 | 1,913 | 2,665
United States [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 195,455 | 197,246 | 236,187
Equipment, Enterprise Software and Leasehold Improvements, net | 851 | 791 | 1,353
Canada [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 1,041 | 2,474 | 4,215
Equipment, Enterprise Software and Leasehold Improvements, net | 254 | 332 | 429
India and Other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 2,447 | 1,378 | 1,836
Equipment, Enterprise Software and Leasehold Improvements, net | $ 893 | $ 790 | $ 883

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