v3.26.1
Intangible Assets - Schedule of Intangible Assets (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Jun. 30, 2026
Sep. 30, 2025
Intangible Asset, Finite-Lived [Line Items]    
Finite-lived intangible assets, gross carrying amount $ 23,662 $ 3,742
Accumulated Amortization (18,301) (2,690)
Total 5,361 1,052
Gross Carrying Value 43,836 20,042
Net Book Value $ 25,535 $ 17,352
Weighted Average Remaining Useful Life (Years) 3 years 8 months 8 days 3 years 9 months 10 days
Accreditations and regulatory approvals    
Intangible Asset, Finite-Lived [Line Items]    
Indefinite-lived intangible assets, gross carrying amount $ 16,300 $ 16,300
Indefinite-lived intangible assets, net book value 16,300 16,300
Development in progress    
Intangible Asset, Finite-Lived [Line Items]    
Indefinite-lived intangible assets, gross carrying amount 3,874  
Indefinite-lived intangible assets, net book value 3,874  
Internally developed software    
Intangible Asset, Finite-Lived [Line Items]    
Finite-lived intangible assets, gross carrying amount 13,461  
Accumulated Amortization (11,617)  
Total $ 1,844  
Weighted Average Remaining Useful Life (Years) 3 years 8 months 15 days  
Internally developed curriculum    
Intangible Asset, Finite-Lived [Line Items]    
Finite-lived intangible assets, gross carrying amount $ 6,459  
Accumulated Amortization (3,686)  
Total $ 2,773  
Weighted Average Remaining Useful Life (Years) 3 years 5 months 4 days  
Trademarks, trade names and other    
Intangible Asset, Finite-Lived [Line Items]    
Finite-lived intangible assets, gross carrying amount $ 1,942 1,942
Accumulated Amortization (1,621) (1,583)
Total $ 321 $ 359
Weighted Average Remaining Useful Life (Years) 6 years 5 months 1 day 7 years 2 months 1 day
Acquired curriculum    
Intangible Asset, Finite-Lived [Line Items]    
Finite-lived intangible assets, gross carrying amount $ 1,800 $ 1,800
Accumulated Amortization (1,377) (1,107)
Total $ 423 $ 693
Weighted Average Remaining Useful Life (Years) 1 year 4 months 6 days 2 years 10 days