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Investment in Films and Television Programs and Licensed Program Rights (Impairments) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Segment Reporting Information [Line Items] |  |  |
Write downs on investments in films and television programs and licensed program rights | $ 420.3 | $ 390.1 | $ 73.0
Development costs, written off | 12.8 |  |
Not included in segment operating results | Direct Operating Expense |  |  |
Segment Reporting Information [Line Items] |  |  |
Write downs on investments in films and television programs and licensed program rights | $ 0.0 | $ 0.0 | $ 36.9
Film, Monetized on Its Own, and Film Group, Impairment, Statement of Income or Comprehensive Income [Extensible Enumeration] | Total direct operating expense on consolidated statements of operations | Total direct operating expense on consolidated statements of operations | Total direct operating expense on consolidated statements of operations
Not included in segment operating results | Restructuring and Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Write downs on investments in films and television programs and licensed program rights | $ 377.3 | $ 379.3 | $ 0.0
Film, Monetized on Its Own, and Film Group, Impairment, Statement of Income or Comprehensive Income [Extensible Enumeration] | Restructuring and other | Restructuring and other | Restructuring and other
Motion Picture | Reportable Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Write downs on investments in films and television programs and licensed program rights | $ 34.6 | $ 6.2 | $ 1.2
Television Production | Reportable Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Write downs on investments in films and television programs and licensed program rights | $ 8.4 | $ 4.6 | $ 34.9

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- Definition Amount of impairment loss on capitalized cost for film predominantly monetized on its own and film group. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 926 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483154/926-20-50-4C + Details
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- Definition Indicates line item in statement in which net income is reported that includes impairment loss on capitalized cost for film predominantly monetized on its own and film group. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 926 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483154/926-20-50-4C + Details
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