Retirement Plans - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Jul. 31, 2025	Jul. 31, 2024
Retirement Benefits [Abstract]
Employer defined benefit pension plan contributions	$ 1.1	$ 3.6
Defined contribution plan expense	$ 6.7	$ 7.3

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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+ Details