Pension and Other Postretirement Benefit Plans (Tables)

9 Months Ended

Jun. 30, 2022

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 June 30,
	Pension				Other Postretirement
	2022		2021		2022		2021
Service cost	$	4	$	2,020	$	42	$	50
Interest cost *	48		1,560		102		94
Expected return on plan assets *	—		(2,761)		—		—
Amortization:
Prior service credit	(66)		(46)		(91)		(91)
Net actuarial loss *	88		2,730		—		—
Curtailment gain *	—		(220)		—		—
Prior service cost write-off *	—		526		—		—
Net benefit cost	$	74	$	3,809	$	53	$	53

	Nine months ended June 30,
	Pension				Other Postretirement
	2022		2021		2022		2021
Service cost	$	389	$	6,216	$	124	$	150
Interest cost *	1,086		4,654		308		282
Expected return on plan assets *	(1,042)		(8,286)		—		—
Amortization:
Prior service credit	(85)		(104)		(273)		(273)
Net actuarial loss *	380		8,774		—		—
Settlement loss *	30,856		—		—		—
Curtailment gain *	—		(220)		—		—
Prior service cost write-off *	—		526		—		—
Net benefit cost	$	31,584	$	11,560	$	159	$	159
* 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 2022 are as follows:

Contributions	Pension		Other Postretirement
Contributions during the nine months ended June 30, 2022:
Principal defined benefit retirement plan	$	35,706	$	—
Supplemental retirement plan	575		—
Other postretirement plan	—		472
Additional contributions expected in fiscal 2022:
Supplemental retirement plan	$	185	$	—
Other postretirement plan	—		412