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Investment In Films and Television Programs and Program Rights (Amortization of Investment in Films and Television Programs and Licensed Program Rights) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Investment In Films And Television Programs and Program Rights [Abstract] |  |  |  |
Individual monetization | $ 106.3 |  | $ 228.8 |
Film group monetization | 66.4 |  | 114.6 |
Licensed program rights | 77.5 |  | 188.0 |
Total amortization of films and television programs and licensed program rights | $ 250.2 | $ 418.6 | $ 531.4 | $ 855.2

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- Definition Film, Monetized on Its Own, Film, Monetized in Film Group and Entertainment, License Agreement for Program Material, Amortization Expense + References No definition available. + Details
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- Definition Investment In Films And Television Programs and Program Rights. + References No definition available. + Details
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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 + Details
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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 + Details
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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 + Details
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