Benefit Plans

9 Months Ended

May 31, 2021

Retirement Benefits [Abstract]

Benefit plans

Benefit Plans    We have various pension and other defined benefit and defined contribution plans, in which substantially all employees may participate. We also have nonqualified supplemental executive and Board retirement plans.

    Components of net periodic benefit costs for the three and nine months ended May 31, 2021 and 2020, are as follows:

	Three Months Ended May 31,
	Qualified Pension Benefits				Nonqualified Pension Benefits				Other Benefits
	2021		2020		2021		2020		2021		2020
Components of net periodic benefit costs:	(Dollars in thousands)
Service cost	$	11,307	$	10,538	$	108	$	101	$	297	$	262
Interest cost	4,141		5,431		68		107		123		187
Expected return on assets	(10,910)		(11,671)		—		—		—		—
Prior service cost (credit) amortization	45		45		(28)		(28)		(111)		(111)
Actuarial loss (gain) amortization	5,447		5,396		53		25		(341)		(348)
Net periodic benefit cost (benefit)	$	10,030	$	9,739	$	201	$	205	$	(32)	$	(10)
	Nine Months Ended May 31,
	Qualified Pension Benefits				Nonqualified Pension Benefits				Other Benefits
	2021		2020		2021		2020		2021		2020
Components of net periodic benefit costs:	(Dollars in thousands)
Service cost	$	33,921	$	31,613	$	325	$	304	$	890	$	787
Interest cost	12,422		16,292		205		322		369		560
Expected return on assets	(32,731)		(35,013)		—		—		—		—
Prior service cost (credit) amortization	134		134		(85)		(85)		(334)		(334)
Actuarial loss (gain) amortization	16,342		16,187		159		74		(1,024)		(1,044)
Net periodic benefit cost (benefit)	$	30,088	$	29,213	$	604	$	615	$	(99)	$	(31)

    The service cost component of defined benefit net periodic benefit cost is recorded in cost of goods sold and marketing, general and administrative expenses. The other components of net periodic benefit cost are recorded in other income.

Employer Contributions

    Any contributions made during fiscal 2021 will depend primarily on market returns on the pension plan assets and minimum funding level requirements. No contributions were made to the pension plans during the nine months ended May 31, 2021, and we do not currently anticipate being required to make contributions for our pension plans in fiscal 2021.