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Investment In Films and Television Programs and Licensed Program Rights (Amortization Expense) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Investment In Films And Television Programs and Program Rights [Abstract]
Individual monetization	$ 183.7	$ 106.3	$ 419.5	$ 228.8
Film group monetization	88.6	66.4	120.7	114.6
Licensed program rights	86.7	77.5	189.9	188.0
Total amortization of films and television programs and licensed program rights	$ 359.0	$ 250.2	$ 730.1	$ 531.4

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 Program Rights.

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 920
-SubTopic 350
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120155617&loc=SL120155632-234783

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 4A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120154696&loc=SL120155244-107959

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 4A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120154696&loc=SL120155244-107959

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