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SEGMENT INFORMATION, GEOGRAPHIC INFORMATION AND CUSTOMER CONCENTRATION - Schedule of Segment Income Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Total consolidated segment operating income | $ 22,172 | $ 45,519 | $ 18,809
Unallocated corporate expenses | (290,373) | (270,365) | (240,933)
Stock-based compensation | (27,329) | (25,212) | (24,062)
Amortization of intangibles | 0 | 0 | (507)
Non-operating expense, net | (3,031) | (1,034) | (9,938)
Income before income taxes | 19,141 | 44,485 | 8,871
Operating Segments |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Total consolidated segment operating income | 55,834 | 74,605 | 44,059
Corporate, Non-Segment |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Unallocated corporate expenses | $ (6,333) | $ (3,874) | $ (681)

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