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Segment Information, Reconciliation of Consolidated U.S. GAAP Operating Income (Loss) to Non-GAAP Adjusted Operating Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 30, 2022 | Apr. 30, 2021 | Apr. 30, 2020
Reconciliation of Consolidated US GAAP Operating Income (Loss) to Non-GAAP Adjusted Contribution to Profit [Abstract] |  |  |  |
US GAAP Operating Income (Loss) |  | $ 219,276 | $ 185,511 | $ (54,287)
Adjustments [Abstract] |  |  |  |
Restructuring and related (credits) charges | [1] | (1,427) | 33,310 | 32,607
Impairment of goodwill | [1] | 0 | 0 | 110,000
Non-GAAP Adjusted Operating Income |  | 217,849 | 218,821 | 180,668
Developed Technology [Member] |  |  |  |
Adjustments [Abstract] |  |  |  |
Impairment of intangible assets | [1] | 0 | 0 | 2,841
Blackwell Trade Name [Member] |  |  |  |
Adjustments [Abstract] |  |  |  |
Impairment of intangible assets | [1] | $ 0 | $ 0 | $ 89,507
[1] | See Note 7, “Restructuring and Related (Credits) Charges” and Note 11, “Goodwill and Intangible Assets” for these charges by segment.

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