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Equity Awards - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Schedule of stock-based compensation expense |  |  |  |
Stock-based compensation expense included in operating expense | $ 4,077 | $ 5,612 | $ 15,202 | $ 16,209
Tax benefit | 1,054 | 1,460 | 3,988 | 4,250
Stock-based compensation expense, net of tax | 3,023 | 4,152 | 11,214 | 11,959
Instructional and support costs |  |  |  |
Schedule of stock-based compensation expense |  |  |  |
Stock-based compensation expense included in operating expense | 597 | 1,802 | 4,128 | 5,190
General and administration |  |  |  |
Schedule of stock-based compensation expense |  |  |  |
Stock-based compensation expense included in operating expense | 3,210 | 3,810 | 10,708 | 11,019
Restructuring costs |  |  |  |
Schedule of stock-based compensation expense |  |  |  |
Stock-based compensation expense included in operating expense | $ 270 | $ 0 | $ 366 | $ 0

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