Income Taxes (Schedule of Unrecognized Tax Benefits Roll Forward) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020
Income Tax Disclosure [Abstract]
Unrecognized tax benefits at beginning of the year	$ 1,141	$ 2,389
Increases for positions taken in current year	0	52
Increases for positions taken in prior years	0	266
Decreases for positions taken in prior years	(36)	(1,360)
Reduction resulting from lapse of applicable statute of limitations	(287)	(206)
Decreases for settlements with tax authorities	(94)	0
Unrecognized tax benefits at end of the year	$ 724	$ 1,141