Discontinued Operations & Other Divestiture Charges Divestitures Activities Discontinued Operations - Loss From Discontinued Operations (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
Oct. 31, 2019	May 31, 2020	May 31, 2019	May 31, 2020	May 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business/product line				$ 10,226	$ 0
Net (Loss) Earnings from Discontinued Operations		$ (69)	$ 5,560	(6,076)	6,518
Engineered Components & Systems [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business/product line	$ 214,500	1,300
Disposal Group, Including Discontinued Operation, Revenue		0	117,171	67,010	363,270
Disposal Group, Including Discontinued Operation, Costs of Goods Sold		0	87,224	49,749	272,456
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)		0	29,947	17,261	90,814
Disposal Group, Including Discontinued Operation, Selling, Administrative and Engineering Expenses		116	16,801	11,567	54,184
Disposal Group, Including Discontinued Operation, Amortization of Intangible Assets		0	1,573	0	5,142
Disposal Group, Including Discontinued Operation, Restructuring (Benefit) Charges		0	0	(11)	446
Disposal Group, Including Discontinued Operation, Impairment & Divestiture (Benefits) Charges		(31)	2,392	28,699	18,711
Disposal Group, Including Discontinued Operation, Operating (Loss) Earnings		(85)	9,181	(22,994)	12,331
Disposal Group, Including Discontinued Operation, Financing Costs (Benefits)		0	109	14	102
Disposal Group, Including Discontinued Operation, Other Expense		0	1,165	104	1,712
Disposal Group, Including Discontinued Operation, (Loss) Earnings Before Income Tax Benefit		(85)	7,907	(22,904)	10,517
Disposal Group, Including Discontinued Operation, Income Tax (Benefit) Expense		(16)	2,347	(16,828)	3,999
Net (Loss) Earnings from Discontinued Operations		$ (69)	$ 5,560	$ (6,076)	$ 6,518

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Disposal Group, Including Discontinued Operation, Impairment & Divestiture Charges

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Disposal Group, Including Discontinued Operation, Income Tax Benefit

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Disposal Group, Including Discontinued Operation, Loss Before Income Tax Benefit

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Amount of costs of goods sold attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of depreciation and amortization expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of gross profit attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of other expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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