v3.26.1
Description of the Business, Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details)
$ in Millions
12 Months Ended
May 31, 2026
USD ($)
segment
May 31, 2025
USD ($)
May 31, 2024
USD ($)
Jun. 01, 2023
May 31, 2023
Property, Plant and Equipment [Line Items]          
Allowance for doubtful accounts receivable $ 11.0 $ 11.0      
Property, plant and equipment, net $ 201.6 516.3      
Useful life of intangible assets 7 years 6 months        
Royalty advances, net $ 92.7 86.9      
Reporting units subject to goodwill impairment | segment 7        
Advertising expense $ 58.4 61.4 $ 61.7    
Capitalized costs $ 8.2 9.8      
Number of international locations export business 145        
Scholastic, Inc. | Make Believe Ideas Limited (MBI)          
Property, Plant and Equipment [Line Items]          
Noncontrolling interest, ownership percentage by parent       100.00% 95.00%
Founder and CEO of MBI | Make Believe Ideas Limited (MBI)          
Property, Plant and Equipment [Line Items]          
Noncontrolling ownership percentage         5.00%
Minimum          
Property, Plant and Equipment [Line Items]          
Initial term 3 years        
Minimum | Investment in Film and Television Programs          
Property, Plant and Equipment [Line Items]          
Investment, initial amortization rate 50.00%        
Investment, amortization rate 10.00%        
Maximum          
Property, Plant and Equipment [Line Items]          
Initial term 10 years        
Maximum | Investment in Film and Television Programs          
Property, Plant and Equipment [Line Items]          
Investment, initial amortization rate 90.00%        
Investment, amortization rate 25.00%        
Buildings          
Property, Plant and Equipment [Line Items]          
Depreciable life 40 years        
Building Improvements          
Property, Plant and Equipment [Line Items]          
Depreciable life 25 years        
Furniture and Fixtures          
Property, Plant and Equipment [Line Items]          
Depreciable life 10 years        
Software and Software Development Costs          
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, net $ 52.4 51.8      
Capitalized costs, amortization $ 21.9 $ 23.0 $ 25.1    
Software and Software Development Costs | Minimum          
Property, Plant and Equipment [Line Items]          
Depreciable life 3 years        
Software and Software Development Costs | Maximum          
Property, Plant and Equipment [Line Items]          
Depreciable life 10 years        
Leases associated with headquarters and primary distribution facility | Minimum          
Property, Plant and Equipment [Line Items]          
Initial term 15 years        
Leases associated with headquarters and primary distribution facility | Maximum          
Property, Plant and Equipment [Line Items]          
Initial term 20 years        
Customer Lists | Minimum          
Property, Plant and Equipment [Line Items]          
Useful life of intangible assets 5 years        
Customer Lists | Maximum          
Property, Plant and Equipment [Line Items]          
Useful life of intangible assets 10 years        
Prepublication Costs | Minimum          
Property, Plant and Equipment [Line Items]          
Useful life of intangible assets 2 years        
Prepublication Costs | Maximum          
Property, Plant and Equipment [Line Items]          
Useful life of intangible assets 5 years