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Segment Information - Summary Of Acquisition Of Investment In Films And Television Programs (Details) - USD ($) $ in Millions | 12 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Acquisition of investment in films and television programs | $ 1,120.5 | $ 1,568.4 | $ 1,750.1
Motion Picture |  |  |
Acquisition of investment in films and television programs | 418.1 | 484.5 | 463.1
Television Production |  |  |
Acquisition of investment in films and television programs | 702.4 | 1,083.9 | 1,287.0
Starz Business of Lions Gate Entertainment Corp |  |  |
Additions to programming content | 747.5 | 915.5 | 865.8
Starz Business of Lions Gate Entertainment Corp | Starz Networks |  |  |
Additions to programming content | 742.3 | 905.4 | 853.3
Starz Business of Lions Gate Entertainment Corp | International |  |  |
Additions to programming content | $ 5.2 | $ 10.1 | $ 12.5

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