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Retirement Plans (Narrative) (Details) $ in Thousands	12 Months Ended
	Aug. 31, 2024 USD ($) CompensationYears Executive	Aug. 31, 2023 USD ($)	Aug. 31, 2022 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 1,400	$ 1,300	$ 1,200
Number of former executives | Executive	5
Number of highest compensation years | CompensationYears	3
Discount rate, liability	5.10%	5.00%
Discount Rate, net periodic benefit cost	5.00%	4.10%	2.60%
Actuarial loss	$ 83	$ (191)
Supplemental Employee Retirement Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss	$ 200

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- Definition

Number Of Former Executives For Which A Non-Qualified Retirement Plan Is Maintained

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Number Of Highest Compensation Years Of Employment That Are used In Calculation Of Plan Benefits

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- Definition

Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

+ References

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Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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