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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2021	May 31, 2020
Income Taxes [Line Items]
Income tax expense	$ 3,357	$ 2,171	$ 5,829	$ 6,432
Estimated annual effective income tax rate			21.40%	23.60%
Tax adjustment for unusual items			$ (3,300)	$ (300)
Foreign Jurisdiction [Member]
Income Taxes [Line Items]
Valuation allowance	$ 1,700		$ 1,700

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- Definition

Income taxes.

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No definition available.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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