Deferred Compensation and Retirement Plans (Tables)

9 Months Ended

Jan. 31, 2021

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Benefits Costs

The components of net periodic benefit costs are as follows:

	Three Months Ended January 31,						Nine Months Ended January 31,
	2021			2020			2021			2020
	(in thousands)
Service cost	$	8,218		$	6,502		$	23,698		$	18,432
Interest cost		1,047			1,423			3,127			4,238
Amortization of actuarial loss		997			746			2,990			2,236
Expected return on plan assets (1)		(351	)		(363	)		(1,053	)		(1,089	)
Net periodic service credit amortization		(101	)		(77	)		(304	)		(231	)
Net periodic benefit costs (2)	$	9,810		$	8,231		$	28,458		$	23,586

(1) The expected long-term rate of return on plan assets was 6.00% and 6.00% for January 31, 2021 and 2020, 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 consolidated statements of income.