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Income Taxes (Details) $ in Millions | 6 Months Ended
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Sep. 30, 2020 USD ($)
Income Tax Disclosure [Abstract] |
Tax benefit due to intra-group transfer of certain intellectual property rights | $ 60.9
Reduction in tax rate due to intra-group transfer of certain intellectual property rights | 34.20%
Cumulative income tax expense impact of Altera decision | $ 25.2

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