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Investment in Films and Television Programs and Licensed Program Rights (Amortization of Investment in Films and Television Programs and Licensed Program Rights) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Investment in Films and Television Programs and Licensed Program Rights [Abstract]
Individual monetization	$ 907.1	$ 951.2	$ 887.3
Film group monetization	382.0	330.0	303.0
Licensed program rights	288.8	384.1	377.4
Total amortization of films and television programs and licensed program rights	$ 1,577.9	$ 1,665.3	$ 1,567.7

X

- Definition

Film, Monetized on Its Own, Film, Monetized in Film Group and Entertainment, License Agreement for Program Material, Amortization Expense

+ References

No definition available.

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- Definition

Investment in Films and Television Programs and Licensed Program Rights

+ References

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- Definition

Amount of amortization expense for 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 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483256/920-350-50-2

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- Definition

Amount of amortization expense for 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 4A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483154/926-20-50-4A

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483154/926-20-50-4A

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