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Stock Options and Restricted Stock Units - Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Derivatives, Fair Value |  |  |  |
Total stock-based compensation |  |  | $ 2,881 | $ 2,998
Equity Plans |  |  |  |
Derivatives, Fair Value |  |  |  |
Direct operating costs | $ 43 | $ 85 | 200 | 210
Selling and administrative expenses | 812 | 932 | 2,681 | 2,788
Total stock-based compensation | $ 855 | $ 1,017 | $ 2,881 | $ 2,998

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