Pension and Other Postretirement Benefit Plans (Tables)

3 Months Ended

Dec. 31, 2020

Retirement Benefits [Abstract]

Net Periodic Pension and Other Postretirement Benefit Cost

Net periodic pension and other postretirement benefit cost for the plans included the following:

	Three months ended December 31,
	Pension				Other Postretirement
	2020		2019		2020		2019
Service cost	$	2,213	$	2,170	$	50	$	64
Interest cost *	1,548		1,933		94		140
Expected return on plan assets *	(2,763)		(2,232)		—		—
Amortization:
Prior service cost	(17)		(47)		(91)		(23)
Net actuarial loss *	3,021		2,387		—		—
Net benefit cost	$	4,002	$	4,211	$	53	$	181

* Non-service components of pension and postretirement expense are included in other income (deductions), net.

Contributions Made and Anticipated for the Current Fiscal Year

Contributions made and anticipated for fiscal year 2021 are as follows:

Contributions	Pension		Other Postretirement
Contributions during the three months ended December 31, 2020:
Supplemental retirement plan	$	203	$	—
Other postretirement plan	—		23
Additional contributions expected in fiscal 2021:
Principal retirement plan	$	4,191	$	—
Supplemental retirement plan	702		—
Other postretirement plan	—		808