Investment In Films and Television Programs and Licensed Program Rights (Investment in Films and Television Programs and Licensed Program Rights) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Mar. 31, 2023
Individual Monetization
Released, net of accumulated amortization	$ 804.9	$ 611.7
Completed and not released	296.1	278.7
In progress	467.6	457.0
In development	61.3	64.1
Total	1,629.9	1,411.5
Film Group Monetization
Released, net of accumulated amortization	562.1	657.8
Completed and not released	272.7	281.7
In progress	111.3	303.0
In development	9.1	8.2
Total	955.2	1,250.7
Licensed program rights, net of accumulated amortization	187.6	285.7
Investment in films and television programs and licensed program rights, net	$ 2,772.7	$ 2,947.9

Film, Monetized on Its Own and Film, Monetized in Film Group and License Agreement for Program Rights, Capitalized Cost

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- Definition

Amount of capitalized cost for right acquired by broadcaster under license agreement for program material.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 920
-SubTopic 350
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483282/920-350-45-1

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- Definition

Amount of capitalized film cost for film predominantly monetized with other films and license agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483154/926-20-50-2

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- References

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Amount of capitalized film cost for completed and not released film predominantly monetized with other films and license agreements.

+ References

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Amount of capitalized film cost incurred in development and preproduction of film predominantly monetized with other films and license agreements.

+ References

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Amount of capitalized film cost incurred in production of film predominantly monetized with other films and license agreements.

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Amount of capitalized film cost for released film predominantly monetized with other films and license agreements.

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Amount of capitalized film cost for film predominantly monetized on its own.

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Amount of capitalized film cost for completed and not released film predominantly monetized on its own.

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Amount of capitalized film cost incurred in development and preproduction of film predominantly monetized on its own.

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Amount of capitalized film cost incurred in production of film predominantly monetized on its own.

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Amount of capitalized film cost for released film predominantly monetized on its own.

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