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STOCK-BASED COMPENSATION - Stock-Based Compensation (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Stock-based compensation expense for stock options, stock awards and employee stock purchases included in operations: |  |  |  |
Stock-based compensation expense | $ 11,035 | $ 6,752 | $ 17,449 | $ 14,120
Restricted Stock Units (RSUs) |  |  |  |
Stock-based compensation expense for stock options, stock awards and employee stock purchases included in operations: |  |  |  |
Stock-based compensation expense | 6,300 | 5,300 | 12,400 | 11,200
Performance Based Awards and Long Term Performance based Units |  |  |  |
Stock-based compensation expense for stock options, stock awards and employee stock purchases included in operations: |  |  |  |
Stock-based compensation expense | 4,300 | 1,000 | 4,300 | 1,900
Employee Stock Purchase Plan |  |  |  |
Stock-based compensation expense for stock options, stock awards and employee stock purchases included in operations: |  |  |  |
Stock-based compensation expense | 400 | 500 | 700 | 1,000
Cost of revenues |  |  |  |
Stock-based compensation expense for stock options, stock awards and employee stock purchases included in operations: |  |  |  |
Stock-based compensation expense | 707 | 446 | 1,053 | 747
Research and development |  |  |  |
Stock-based compensation expense for stock options, stock awards and employee stock purchases included in operations: |  |  |  |
Stock-based compensation expense | 3,885 | 2,429 | 6,310 | 5,097
Sales and marketing |  |  |  |
Stock-based compensation expense for stock options, stock awards and employee stock purchases included in operations: |  |  |  |
Stock-based compensation expense | 2,510 | 1,621 | 4,114 | 3,274
General and administrative |  |  |  |
Stock-based compensation expense for stock options, stock awards and employee stock purchases included in operations: |  |  |  |
Stock-based compensation expense | $ 3,933 | $ 2,256 | $ 5,972 | $ 5,002

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