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Deferred Compensation and Retirement Plans - Components of Net Periodic Benefits Costs (Detail) - Deferred Compensation Plan - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Jan. 31, 2022
Jan. 31, 2021
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 9,762 $ 8,218 $ 28,190 $ 23,698
Interest cost 1,038 1,047 3,095 3,127
Amortization of actuarial loss 537 997 1,622 2,990
Expected return on plan assets [1] (387) (351) (1,160) (1,053)
Net periodic service credit amortization (101) (101) (304) (304)
Net periodic benefit costs [2] $ 10,849 $ 9,810 $ 31,443 $ 28,458
[1] The expected long-term rate of return on plan assets was 6.00% and 6.00% for January 31, 2022 and 2021, 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 (loss) income, net, respectively, on the consolidated statements of income.