Discontinued Operations & Other Divestiture Charges Divestitures Activities Discontinued Operations - Loss From Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2021	May 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business/product line			$ 0	$ 10,226
Net (Loss) Earnings from Discontinued Operations	$ (226)	$ (69)	(852)	(6,076)
Engineered Components & Systems [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	0	0	0	67,010
Disposal Group, Including Discontinued Operation, Costs of Goods Sold	0	0	0	49,749
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)	0	0	0	17,261
Disposal Group, Including Discontinued Operation, Amortization of Intangible Assets	0	0	0	0
Disposal Group, Including Discontinued Operation, Restructuring (Benefit) Charges	0	0	0	(11)
Disposal Group, Including Discontinued Operation, Impairment & Divestiture (Benefits) Charges	0	(31)	0	28,699
Disposal Group, Including Discontinued Operation, Operating (Loss) Earnings	(102)	(85)	(956)	(22,994)
Disposal Group, Including Discontinued Operation, Financing Costs (Benefits)	0	0	0	14
Disposal Group, Including Discontinued Operation, Other Expense	0	0	0	104
Disposal Group, Including Discontinued Operation, (Loss) Earnings Before Income Tax Benefit	(102)	(85)	(956)	(22,904)
Disposal Group, Including Discontinued Operation, Income Tax (Benefit) Expense	124	(16)	(104)	(16,828)
Net (Loss) Earnings from Discontinued Operations	$ (226)	$ (69)	$ (852)	$ (6,076)