Deferred Compensation and Retirement Plans - Schedule of Components of Net Periodic Benefits Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2025	Jul. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on plan assets	6.25%	6.00%
Deferred Compensation Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 11,673	$ 10,655
Interest cost	3,884	4,451
Amortization of actuarial loss	127	32
Expected return on plan assets	(278)	(266)
Net periodic service credit amortization	(101)	(101)
Net periodic benefit costs	$ 15,305	$ 14,771