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Amortizable Intangible Assets - Amortization Expense for Developed Curricula and Student Relationships (Details)
$ in Thousands
Sep. 30, 2023
USD ($)
Amortization expense  
2023 $ 2,104
2024 8,419
2025 8,419
2026 8,419
2027 8,419
Thereafter 134,705
Net Carrying Amount $ 170,485