Pensions and Other Postretirement Benefits (Details 4) - USD ($) $ in Millions |
Apr. 30, 2026 |
Apr. 30, 2025 |
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| Defined Benefit Pension Plans | ||
| Accumulated other comprehensive income (loss) | ||
| Net actuarial gain (loss) | $ (41.6) | $ (91.2) |
| Prior service credit (cost) | (0.4) | (0.6) |
| Total recognized in accumulated other comprehensive income (loss) | (42.0) | (91.8) |
| Other Postretirement Benefits | ||
| Accumulated other comprehensive income (loss) | ||
| Net actuarial gain (loss) | 20.2 | 21.2 |
| Prior service credit (cost) | 0.7 | 1.3 |
| Total recognized in accumulated other comprehensive income (loss) | $ 20.9 | $ 22.5 |
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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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