Deferred Compensation and Retirement Plans (Tables)

6 Months Ended

Oct. 31, 2023

Retirement Benefits [Abstract]

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,
	2023		2022		2023		2022
	(in thousands)
Service cost	$	11,346	$	10,484	$	21,179	$	19,627
Interest cost	3,436		2,437		6,793		4,824
Amortization of actuarial loss	183		218		367		436
Expected return on plan assets (1)	(272)		(289)		(544)		(578)
Net periodic service credit amortization	(102)		(102)		(203)		(203)
Net periodic benefit costs (2)	$	14,591	$	12,748	$	27,592	$	24,106

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(1) The expected long-term rate of return on plan assets was 6.00% and 5.50% for October 31, 2023 and 2022, 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, net, respectively, on the consolidated statements of operations.