v3.23.3
Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($)
$ in Thousands
 3 Months Ended 15 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Summary of Significant Accounting Policies      
Revenues $ 480,181 $ 425,150  
Percentage of impact on total revenue     2.00%
School operating losses included in the entity's revenue $ 5,200 10,100  
Minimum      
Summary of Significant Accounting Policies      
Duration of contracts providing access to curriculum via the entity's Web site 1 year    
Maximum      
Summary of Significant Accounting Policies      
Duration of contracts providing access to curriculum via the entity's Web site 2 years    
Primary Obligor      
Summary of Significant Accounting Policies      
Revenues $ 136,100 $ 125,300