Summary of Significant Accounting Policies - Capitalized Software-as-a-Service Costs (Details) - Capitalized computer software as service - USD ($) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Jun. 30, 2024 |
|
| Property and equipment, net | |||
| Capitalized software written down | $ 0.0 | $ 0.0 | |
| Prepaid expenses | |||
| Property and equipment, net | |||
| Capitalized software, net | 15.2 | $ 13.3 | |
| Deposits and other assets | |||
| Property and equipment, net | |||
| Capitalized software, net | 41.7 | $ 44.1 | |
| Instructional costs and services | |||
| Property and equipment, net | |||
| Amortization expense | 0.7 | 0.0 | |
| Selling, General and Administrative Expenses | |||
| Property and equipment, net | |||
| Amortization expense | $ 4.3 | $ 3.5 | |
| Minimum | |||
| Property and equipment, net | |||
| Capitalized software as service useful life | 3 years | ||
| Maximum | |||
| Property and equipment, net | |||
| Capitalized software as service useful life | 5 years | ||