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Investment In Films and Television Programs and Program Rights (Schedule of Investment In Films And Television Programs) (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Mar. 31, 2018
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Investment in Films and Television Programs and Program Rights [Line Items] |  |
Total investment in films and television programs and program rights, net | $ 1,917.0 | $ 1,945.2
Less current portion of program rights | (247.0) | (253.2)
Non-current portion | 1,670.0 | 1,692.0
Motion Picture | Theatrical And Non-Theatrical Films |  |
Investment in Films and Television Programs and Program Rights [Line Items] |  |
Released, net of accumulated amortization | 416.9 | 410.5
Acquired libraries, net of accumulated amortization | 1.5 | 2.1
Completed and not released | 59.4 | 55.0
In progress | 263.4 | 347.2
In development | 25.8 | 24.6
Total investment in film and television programs | 767.0 | 839.4
Television Production | Direct-to-Television Programs |  |
Investment in Films and Television Programs and Program Rights [Line Items] |  |
Released, net of accumulated amortization | 184.5 | 238.9
In progress | 297.3 | 186.6
In development | 22.3 | 4.8
Total investment in film and television programs | 504.1 | 430.3
Media Networks |  |
Investment in Films and Television Programs and Program Rights [Line Items] |  |
Released, net of accumulated amortization | 552.5 | 616.9
In progress | 81.5 | 45.6
In development | 56.2 | 30.0
Total investment in films and television programs and program rights, net | 690.2 | 692.5
Intersegment eliminations | $ (44.3) | $ (17.0)

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- Definition Investment in films and television programs represents the carrying amount of unamortized costs of completed films and television programs which have been produced or acquired, libraries acquired as part of acquisitions of companies, and films and television programs in progress and in development. Capitalized costs include production costs, production overhead, interest, development costs and acquired production costs. The carrying amount is stated at the lower of cost, less accumulated amortization, or fair value at the balance sheet date. Program rights include unamortized costs relating to rights to exhibit feature films, movies, television series and other acquired programming on networks. For a classified balance sheet, represents the noncurrent portion only of investment in films and television programs and program rights. + References No definition available. + Details
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- Definition The carrying amount of unamortized costs of completed films and television programs which have been produced by the Company or for which the Company has acquired distribution rights, libraries acquired as part of acquisitions of companies, films and television programs in progress and in development and home entertainment product inventory. Capitalized costs include production costs, production overhead, interest, development costs and acquired production costs. The carrying amount is stated at the lower of cost, less accumulated amortization, or fair value at the balance sheet date. + References No definition available. + Details
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- Definition Investment in films and television programs represents the carrying amount of unamortized costs of completed films and television programs which have been produced or acquired, libraries acquired as part of acquisitions of companies, and films and television programs in progress and in development. Capitalized costs include production costs, production overhead, interest, development costs and acquired production costs. The carrying amount is stated at the lower of cost, less accumulated amortization, or fair value at the balance sheet date. Program rights include unamortized costs relating to rights to exhibit feature films, movies, television series and other acquired programming on networks. For a classified balance sheet, represents the current and noncurrent portion of investment in films and television programs and program rights. + References No definition available. + Details
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