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Due To/From LG Studios Business - Schedule of Net Transfers (Details) - USD ($) | 6 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024
Related Party Transaction [Line Items] |  |
Net transfers from Parent included on consolidated statements of cash flows | $ 5,600,000 | $ (65,400,000)
Stock-based compensation expense prior to Separation |  | 300,000
Net cash provided by financing activities – discontinued operations | 0 | 2,800,000
Related Party |  |
Related Party Transaction [Line Items] |  |
Net transfers from Parent included on consolidated statements of cash flows | (5,600,000) | (68,200,000)
Other Transfers To (From) Parent, Net | 4,300,000 | 35,000,000.0
Stock-based compensation expense prior to Separation | 1,400,000 |
Share-based compensation (including allocation of share-based compensation) |  | 9,900,000
Net transfers from Parent included on unaudited condensed consolidated statements of equity | $ 100,000 | (43,100,000)
Related Party | Cash pooling and general financing activities |  |
Related Party Transaction [Line Items] |  |
Net transfers from Parent included on consolidated statements of cash flows |  | (72,000,000.0)
Related Party | Licensing of content |  |
Related Party Transaction [Line Items] |  |
Net transfers from Parent included on consolidated statements of cash flows |  | 800,000
Related Party | Operating expense reimbursement |  |
Related Party Transaction [Line Items] |  |
Net transfers from Parent included on consolidated statements of cash flows |  | 5,300,000
Related Party | Corporate expense allocations (excluding allocation of share-based compensation) |  |
Related Party Transaction [Line Items] |  |
Net transfers from Parent included on consolidated statements of cash flows |  | $ 2,300,000

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