Earnings before Income Taxes, Including both Continuing and Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018
Income Tax Disclosure [Abstract]
Income (Loss) from Continuing Operations before Income Taxes, Domestic	$ (9,058)	$ (715)	$ 5,337
Income (Loss) from Continuing Operations before Income Taxes, Foreign	16,907	19,439	13,859
Earnings (loss) before income tax expense	$ 7,849	$ 18,724	$ 19,196