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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 31, 2023 | Jan. 31, 2022 | Jan. 31, 2023 | Jan. 31, 2022
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |  |
Effective tax rate reconciliation (as a percent) | 7.70% | 18.20% | 2.70% | 33.40%
Tax benefit resulting from impairment of goodwill | $ 4.8 |  |  |
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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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible impairment loss. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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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