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Benefit Plans

9 Months Ended

May 31, 2023

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 of Directors retirement plans.

    Components of net periodic benefit costs for the three and nine months ended May 31, 2023 and 2022, are as follows:

			Three Months Ended May 31,
			Qualified Pension Benefits												Nonqualified Pension Benefits												Other Benefits
			2023						2022						2023						2022						2023						2022
Components of net periodic benefit costs:			(Dollars in thousands)
Service cost			$	9,645					$	11,569					$	460					$	232					$	168					$	249
Interest cost			7,647						4,292						185						70						259						126
Expected return on assets			(10,782)						(10,990)						—						—						—						—
Prior service cost (credit) amortization			37						44						(29)						(29)						(111)						(111)
Actuarial loss (gain) amortization			468						5,852						61						120						(404)						(315)
Net periodic benefit cost (benefit)			$	7,015					$	10,767					$	677					$	393					$	(88)					$	(51)
			Nine Months Ended May 31,
			Qualified Pension Benefits												Nonqualified Pension Benefits												Other Benefits
			2023						2022						2023						2022						2023						2022
Components of net periodic benefit costs:			(Dollars in thousands)
Service cost			$	28,934					$	34,706					$	1,380					$	695					$	503					$	747
Interest cost			22,941						12,875						556						211						776						377
Expected return on assets			(32,347)						(32,969)						—						—						—						—
Prior service cost (credit) amortization			112						131						(86)						(86)						(334)						(334)
Actuarial loss (gain) amortization			1,404						17,555						184						359						(1,211)						(944)
Net periodic benefit cost (benefit)			$	21,044					$	32,298					$	2,034					$	1,179					$	(266)					$	(154)

Employer Contributions

    Contributions 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, 2023, and we do not anticipate being required to make contributions for our pension plans in fiscal 2023, although we may voluntarily elect to do so.

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- Definition

The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-URI https://asc.fasb.org/topic&trid=2228938

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 712
-URI https://asc.fasb.org/topic&trid=2197446

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-URI https://asc.fasb.org/topic&trid=2127225

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI https://asc.fasb.org/topic&trid=2235017

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- References

No definition available.

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