v3.26.3
Investments - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Aug. 31, 2026
Aug. 31, 2025
May 31, 2026
May 19, 2026
Nov. 30, 2025
Jun. 20, 2024
Debt and Equity Securities, FV-NI [Line Items]            
Carrying amount of investment     $ 5.7      
Income from equity-method investments $ (0.0) $ 0.1        
Financing and Production Company            
Debt and Equity Securities, FV-NI [Line Items]            
Proceeds from equity method investment, distribution, return of capital     $ 0.3      
Animated Television Production Companies            
Debt and Equity Securities, FV-NI [Line Items]            
Equity method ownership percentage           50.00%
UK Book Publishing Business            
Debt and Equity Securities, FV-NI [Line Items]            
Equity method ownership percentage       26.20%    
UK Children's Book Publishing            
Debt and Equity Securities, FV-NI [Line Items]            
Equity method ownership percentage         12.00%  
Equity Securities without readily determinable fair value, impairment loss         $ 0.3  
Financing and Production Company | Financing and Production Company            
Debt and Equity Securities, FV-NI [Line Items]            
Other equity percentage 4.60%