Film Related Obligations - Future Annual Repayment (Details) - USD ($) $ in Millions	Mar. 31, 2025	Mar. 31, 2024
Future Annual Repayment Of Film Related Obligations [Abstract]
2026	$ 1,617.8
2027	38.6
2028	333.8
2029	0.0
2030	0.0
Thereafter	0.0
Total	1,990.2
Less unamortized issuance costs	(7.1)
Total film related obligations, net	1,983.1	$ 1,938.0
Lions Gate Entertainment Corp.
Future Annual Repayment Of Film Related Obligations [Abstract]
2026	1,708.7
2027	38.6
2028	333.8
2029	0.0
2030	0.0
Thereafter	0.0
Total	2,081.1
Less unamortized issuance costs	(7.3)
Total film related obligations, net	2,073.8	$ 1,938.0
Production Loans
Future Annual Repayment Of Film Related Obligations [Abstract]
2026	1,395.4
2027	0.0
2028	0.0
2029	0.0
2030	0.0
Thereafter	0.0
Total	1,395.4
Production Loans \| Lions Gate Entertainment Corp.
Future Annual Repayment Of Film Related Obligations [Abstract]
2026	1,395.4
2027	0.0
2028	0.0
2029	0.0
2030	0.0
Thereafter	0.0
Total	1,395.4
Production Tax Credit Facility
Future Annual Repayment Of Film Related Obligations [Abstract]
2026	0.0
2027	0.0
2028	280.0
2029	0.0
2030	0.0
Thereafter	0.0
Total	280.0
Production Tax Credit Facility \| Lions Gate Entertainment Corp.
Future Annual Repayment Of Film Related Obligations [Abstract]
2026	0.0
2027	0.0
2028	280.0
2029	0.0
2030	0.0
Thereafter	0.0
Total	280.0
Programming Notes \| Lions Gate Entertainment Corp.
Future Annual Repayment Of Film Related Obligations [Abstract]
2026	90.9
2027	0.0
2028	0.0
2029	0.0
2030	0.0
Thereafter	0.0
Total	90.9
Backlog Facility and Other
Future Annual Repayment Of Film Related Obligations [Abstract]
2026	185.1
2027	0.0
2028	53.8
2029	0.0
2030	0.0
Thereafter	0.0
Total	238.9
Backlog Facility and Other \| Lions Gate Entertainment Corp.
Future Annual Repayment Of Film Related Obligations [Abstract]
2026	185.1
2027	0.0
2028	53.8
2029	0.0
2030	0.0
Thereafter	0.0
Total	238.9
Film Library Facility \| Lions Gate Entertainment Corp.
Future Annual Repayment Of Film Related Obligations [Abstract]
2026	37.3
2027	38.6
2028	0.0
2029	0.0
2030	0.0
Thereafter	0.0
Total	$ 75.9

The total carrying amount of film related obligations, net of unamortized debt issuance costs, if applicable.

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Future Annual Repayment Of Film Related Obligations Due After Year Five

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The aggregate value of imputed interest on film obligations and debt issuance costs, after accumulated amortization, on production and related loans.

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