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Summary of Significant Accounting Policies - Capitalized Software-as-a-Service Costs (Details) - USD ($) | 12 Months Ended
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Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2024
Property and equipment, net |  |  |
Capitalized software, net | $ 95,002,000 | $ 75,314,000 |
Capitalized software written down | 0 | 0 | $ 0
Capitalized computer software as service |  |  |
Property and equipment, net |  |  |
Capitalized software written down | 0 | 0 | 0
Capitalized computer software as service | Instructional costs and services |  |  |
Property and equipment, net |  |  |
Amortization expense | 13,800,000 | 3,400,000 | 0
Capitalized computer software as service | Selling, general and administrative expenses |  |  |
Property and equipment, net |  |  |
Amortization expense | 17,300,000 | 16,000,000 | $ 15,800,000
Capitalized computer software as service | Prepaid expenses |  |  |
Property and equipment, net |  |  |
Capitalized software, net | 18,000,000 | 17,500,000 |
Capitalized computer software as service | Deposits and other assets |  |  |
Property and equipment, net |  |  |
Capitalized software, net | $ 28,100,000 | $ 43,300,000 |
Minimum | Capitalized computer software as service |  |  |
Property and equipment, net |  |  |
Capitalized software as service useful life | 3 years |  |
Maximum | Capitalized computer software as service |  |  |
Property and equipment, net |  |  |
Capitalized software as service useful life | 5 years |  |

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