Stockholders' Equity - Summary of Stock-based Compensation (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||
| Total stock-based compensation expense | $ 8,352 | $ 7,668 | $ 7,740 |
| Instructional costs and services | |||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||
| Total stock-based compensation expense | 770 | 808 | 895 |
| Selling and promotional | |||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||
| Total stock-based compensation expense | 759 | 562 | 490 |
| General and administrative | |||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||
| Total stock-based compensation expense | $ 6,823 | $ 6,298 | $ 6,355 |