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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2022 | Oct. 31, 2021
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |  |
Effective tax rate reconciliation (as a percent) | 21.00% | 20.70% | 18.40% | 39.10%
Her Majesty's Revenue and Customs (HMRC) |  |  |  |
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |  |
Non-cash deferred tax expense from re-measurement of net deferred tax liabilities |  |  |  | $ 20.7
Minimum | Her Majesty's Revenue and Customs (HMRC) |  |  |  |
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |  |
Foreign statutory tax rate |  |  |  | 19.00%
Maximum | Her Majesty's Revenue and Customs (HMRC) |  |  |  |
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |  |
Foreign statutory tax rate |  |  |  | 25.00%

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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- Definition Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 + Details
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