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Investment In Films and Television Programs and Licensed Program Rights (Investment in Films and Television Programs and Licensed Program Rights) (Details) - USD ($) $ in Millions | Sep. 30, 2021 | Mar. 31, 2021
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Individual Monetization |  |
Released, net of accumulated amortization | $ 516.5 | $ 414.7
Completed and not released | 24.0 | 60.3
In progress | 743.1 | 418.7
In development | 97.8 | 92.9
Total | 1,381.4 | 986.6
Film Group Monetization |  |
Released, net of accumulated amortization | 403.5 | 200.4
Completed and not released | 0.0 | 0.0
In progress | 581.1 | 497.1
In development | 22.9 | 28.2
Total | 1,007.5 | 725.7
Licensed program rights, net of accumulated amortization | 399.2 | 510.4
Investment in films and television programs and licensed program rights, net | $ 2,788.1 | $ 2,222.7

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 920 -SubTopic 350 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=120154842&loc=d3e47862-107914 + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54431-107959 + Details
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- Definition Amount of capitalized film cost for completed and not released 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 2 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54431-107959 + Details
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- Definition Amount of capitalized film cost incurred in development and preproduction of 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 2 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54431-107959 + Details
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