v3.26.3
Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($)
$ in Thousands
 3 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Summary of Significant Accounting Policies    
Estimate of Percentage of Impact on Total Revenue 2.00% 2.00%
School operating losses included in the entity's revenue $ 6,900 $ 6,800
Revenues $ 639,378 620,884
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 $ 188,000 $ 170,100