Film Related Obligations - Schedule of Components (Details) - USD ($) $ in Millions	Sep. 30, 2024	Mar. 31, 2024
Film Related Obligations [Abstract]
Production Loans	$ 1,244.8	$ 1,292.2
Production Tax Credit Facility	260.0	260.0
Backlog Facility and Other	273.2	287.3
Film Library Facility	94.2	109.9
Total film related obligations	1,872.2	1,949.4
Unamortized issuance costs	(9.1)	(11.4)
Total film related obligations, net	1,863.1	1,938.0
Less current portion	(1,634.7)	(1,393.1)
Total non-current film related obligations	$ 228.4	$ 544.9