Retirement Plans - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Jul. 31, 2026	Jul. 31, 2025
Retirement Benefits [Abstract]
Employer defined benefit pension plan contributions	$ 1.1	$ 1.1
Defined contribution savings plans	$ 5.8	$ 6.7

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

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+ Details