Derivative Financial Instruments (Details 4) - Cash Flow Hedges - USD ($) $ in Millions |
12 Months Ended | ||||||
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Apr. 30, 2026 |
Apr. 30, 2025 |
Apr. 30, 2024 |
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| Derivative Instruments, Gain (Loss) [Line Items] | |||||||
| Gains (losses) recognized in other comprehensive income (loss) | $ 0.0 | $ 0.0 | $ 0.0 | ||||
| Change in accumulated other comprehensive income (loss) | 12.5 | 69.7 | 13.6 | ||||
| Location, Statement of Income, Balance [Axis]: us-gaap:InterestExpenseNonoperating | |||||||
| Derivative Instruments, Gain (Loss) [Line Items] | |||||||
| Gains (losses) reclassified from accumulated other comprehensive | [1] | (12.5) | (12.8) | (13.6) | |||
| Location, Statement of Income, Balance [Axis]: us-gaap:OtherNonoperatingExpense | |||||||
| Derivative Instruments, Gain (Loss) [Line Items] | |||||||
| Gains (losses) reclassified from accumulated other comprehensive | [2] | $ 0.0 | $ (56.9) | $ 0.0 | |||
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount before tax of reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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