Description of Business, Basis of Presentation and Significant Accounting Policies - Useful Lives (Details)	Mar. 31, 2025
Distribution equipment | Minimum | Lions Gate Entertainment Corp.
Property, Plant and Equipment [Line Items]
Useful life (in years)	3 years
Distribution equipment | Maximum | Lions Gate Entertainment Corp.
Property, Plant and Equipment [Line Items]
Useful life (in years)	7 years
Computer Equipment and Software | Minimum
Property, Plant and Equipment [Line Items]
Useful life (in years)	3 years
Computer Equipment and Software | Minimum | Lions Gate Entertainment Corp.
Property, Plant and Equipment [Line Items]
Useful life (in years)	3 years
Computer Equipment and Software | Maximum
Property, Plant and Equipment [Line Items]
Useful life (in years)	5 years
Computer Equipment and Software | Maximum | Lions Gate Entertainment Corp.
Property, Plant and Equipment [Line Items]
Useful life (in years)	5 years
Furniture and Equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life (in years)	3 years
Furniture and Equipment | Minimum | Lions Gate Entertainment Corp.
Property, Plant and Equipment [Line Items]
Useful life (in years)	5 years
Furniture and Equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life (in years)	5 years
Furniture and Equipment | Maximum | Lions Gate Entertainment Corp.
Property, Plant and Equipment [Line Items]
Useful life (in years)	7 years