Pension and Other Postretirement Benefits (Tables)

6 Months Ended

Jan. 31, 2022

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Schedule of Net Benefit Costs

The components of net periodic pension and postretirement health benefit costs were as follows:

	Pension Benefits
	(in thousands)
	For the Three Months Ended January 31,				For the Six Months Ended January 31,
	2022		2021		2022		2021
Interest cost	$	266	$	583	$	534	$	583
Expected return on plan assets	(646)		(1,444)		(1,293)		(1,444)
Amortization of:
Other actuarial loss	35		265		72		435
Net periodic benefit cost	$	(345)	$	(596)	$	(687)	$	(426)
	Postretirement Health Benefits
	(in thousands)
	For the Three Months Ended January 31,				For the Six Months Ended January 31,
	2022		2021		2022		2021
Service cost	$	28	$	34	$	61	$	69
Interest cost	13		12		29		25
Amortization of:
Other actuarial loss	—		2		—		2
Prior service costs	(2)		(2)		(3)		(3)
Net periodic benefit cost	$	39	$	46	$	87	$	93

Schedule of Assumptions Used

Assumptions used in the previous calculations were as follows:

	Pension Benefits				Postretirement Health Benefits
	For the Three and Six Months Ended January 31,
	2022		2021		2022		2021
Discount rate for net periodic benefit cost	2.57	%	2.14	%	2.10	%	1.63	%
Rate of increase in compensation levels	—	%	—	%	—		—
Long-term expected rate of return on assets	6.50	%	6.50	%	—		—

The medical cost trend assumption for postretirement health benefits was 7.05%. The graded trend rate is expected to decrease to an ultimate rate of 4.50% in fiscal year 2038.