Pensions and Other Postretirement Benefits (Details 6) - Defined Benefit Pension Plans - USD ($) $ in Millions	Apr. 30, 2024	Apr. 30, 2023
Additional information related to the Company's defined benefit pension plans
Accumulated benefit obligation for all pension plans	$ 345.2	$ 374.6
Plans with an accumulated benefit obligation in excess of plan assets:
Accumulated benefit obligation	276.7	194.6
Fair value of plan assets	205.3	133.1
Plans with a projected benefit obligation in excess of plan assets:
Projected benefit obligation	276.7	198.9
Fair value of plan assets	$ 205.3	$ 133.1

Additional information related to company's defined benefit pension plans.

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Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

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Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets.

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-Topic 715
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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

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