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Divestitures and Held-For-Sale (Narrative) (Details) $ in Thousands | 9 Months Ended |
--- | --- | ---
May 31, 2019 USD ($) | May 31, 2018 USD ($) | Aug. 31, 2018 Facility
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |
Loss on sale of irrigation dealership | $ 301 | $ 6,023 |
Note receivable from sale of business | 5,589 | $ 0 |
North America [Member] | Infrastructure [Member] |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |
Number of manufacturing facilities closed | Facility |  |  | 1
General and Administrative Expense [Member] |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |
Loss on sale of irrigation dealership | $ 300 |  |

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