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Share-Based Compensation Plans - Additional Information (Details) - USD ($) shares in Thousands, $ in Thousands |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2024 | Jul. 31, 2024 | Apr. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share-Based Compensation |  |  |  |  |  |
Shares available for grant |  |  |  | 962 |  |
Share-based compensation |  |  |  | $ 14,225 | $ 13,204 | $ 12,642
Minimum eligible age to participate in the plan |  |  |  | 21 years |  |
University made discretionary matching contributions |  |  |  | $ 3,092 | 2,951 | 2,744
General and administrative |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |
Share-based compensation |  |  |  | $ 4,205 | $ 3,787 | $ 3,777
Maximum |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |
Shares authorized |  |  |  | 3,000 |  |
Restricted Stock Grants |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |
Shares granted |  |  |  | 120 | 140 | 193
Shares withheld for taxes |  | 2 |  |  |  |
Common stock in lieu of taxes |  | $ 324 |  |  |  |
Shares vested | 5 | 5 |  | 151 | 147 | 134
Unrecognized share-based compensation cost |  |  |  | $ 30,345 |  |
Costs are expected to be recognized over a weighted average period |  |  |  | 2 years 10 days |  |
Restricted Stock Grants | General and administrative |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |
Share-based compensation | $ 558 |  |  |  |  |
Restricted Stock Grants | Share-based payment arrangement, employee |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |
Shares granted |  |  |  | 117 | 136 | 189
Vesting period |  |  |  | 5 years |  |
Shares withheld for taxes |  |  |  | 55 | 56 | 52
Common stock in lieu of taxes |  |  |  | $ 7,446 | $ 6,331 | $ 4,625
Restricted Stock Grants | Share-based payment arrangement, nonemployee |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |
Shares granted |  |  |  | 3 | 4 | 4
Vesting period |  |  | 1 year | 1 year |  |
Restricted Stock Grants | Share-based Compensation Award, Tranche One | Share-based payment arrangement, employee |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |
Vesting right percentage |  |  |  | 20.00% |  |
Restricted Stock Grants | Share-based Compensation Award, Tranche Two | Share-based payment arrangement, employee |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |
Vesting right percentage |  |  |  | 20.00% |  |
Restricted Stock Grants | Share-based Compensation Award, Tranche Three | Share-based payment arrangement, employee |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |
Vesting right percentage |  |  |  | 20.00% |  |
Restricted Stock Grants | Share-based Compensation Award Tranche Four | Share-based payment arrangement, employee |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |
Vesting right percentage |  |  |  | 20.00% |  |
Restricted Stock Grants | Share-based Compensation Award Tranche Five | Share-based payment arrangement, employee |  |  |  |  |  |
Share-Based Compensation |  |  |  |  |  |
Vesting right percentage |  |  |  | 20.00% |  |

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