Annual report pursuant to Section 13 and 15(d)

Deferred Compensation And Retirement Plans - Components of Net Periodic Benefits Costs (Detail)

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Deferred Compensation And Retirement Plans - Components of Net Periodic Benefits Costs (Detail) - Deferred Compensation Plan - USD ($)
$ in Thousands
 12 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Apr. 30, 2020
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 37,952 $ 31,947 $ 24,939
Interest cost 4,028 4,035 5,433
Amortization of actuarial loss 2,170 4,117 3,261
Net prior service credit amortization (97) (97) (24)
Expected return on plan assets (1,554) (1,404) (1,452)
Net periodic benefit cost [1] $ 42,499 $ 38,598 $ 32,157
[1] The service cost, interest cost and other components of net periodic benefit costs are included in compensation and benefits expense, interest expense, net and other (loss) income, net, respectively, on the consolidated statements of income.