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Deferred Compensation and Retirement Plans (Tables)
 6 Months Ended
Oct. 31, 2025
Retirement Benefits [Abstract]  
Schedule of Components of Net Periodic Benefits Costs
The components of net periodic benefit costs are as follows:
Three Months Ended
October 31,		Six Months Ended
October 31,
2025202420252024
(in thousands)
Service cost$12,790 $11,825 $24,463 $22,480 
Interest cost3,939 4,513 7,823 8,964 
Amortization of actuarial loss127 32 254 64 
Expected return on plan assets (1)
(278)(266)(556)(532)
Net periodic service credit amortization(101)(102)(202)(203)
Net periodic benefit costs (2)
$16,477 $16,002 $31,782 $30,773 
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(1)
The expected long-term rate of return on plan assets was 6.25% and 6.00% for October 31, 2025 and 2024, respectively.
(2)
The service cost, interest cost and the other components of net periodic benefit costs are included in compensation and benefits expense, interest expense, net and other income, net, respectively, on the condensed consolidated statements of income.