Film Related Obligations - Cumulative Minimum Guaranteed Payments of IP Credit Facility (Details) $ in Millions	Mar. 31, 2025 USD ($)
Debt Instrument [Line Items]
2029	$ 134.0
September 30 2026	765.8
July 30, 2027	0.0
Lions Gate Entertainment Corp.
Debt Instrument [Line Items]
2029	134.0
September 30 2026	1,480.8
July 30, 2027	0.0
Secured Debt | Film Library Facility
Debt Instrument [Line Items]
2029	91.1
September 30 2026	121.4
July 30, 2027	161.9
Secured Debt | Film Library Facility | Lions Gate Entertainment Corp.
Debt Instrument [Line Items]
2029	91.1
September 30 2026	121.4
July 30, 2027	$ 161.9