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Property And Equipment And Capitalized Cloud-Based Software Implementation Costs (Narrative) (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
May 31, 2022 | May 31, 2021 | May 31, 2022 | May 31, 2021 | Aug. 31, 2021
Machinery, Equipment And Vehicles [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Capital costs | $ 13,500,000 |  | $ 13,500,000 |  | $ 30,300,000
Capitalized Cloud-Based Asset [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Capitalized implementation costs | 5,400,000 |  | 5,400,000 |  | 2,600,000
Accumulated amortization | 0 |  | 0 |  | $ 0
Amortization expense | $ 0 | $ 0 | $ 0 | $ 0 |

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- Definition For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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- Definition The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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