Business Combinations (Details) - USD ($) $ in Thousands	12 Months Ended
Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Earnings (loss) before income taxes	$ 1,907	$ (528)	$ 3,235
International Marketing and Distribution
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales			304,650
Cost of goods sold			276,184
Selling, general and administrative expenses			25,317
Interest expense			(86)
Earnings (loss) before income taxes			3,235
Income taxes benefit			(34)
Earnings from discontinued operations			$ 3,269

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