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Business Segments (Schedule of Capital Expenditures and Depreciation and Amortization) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Aug. 31, 2025 | Aug. 31, 2024 | Aug. 31, 2023
Segment Reporting Information [Line Items] |  |  |
Total capital expenditures | $ 42,496 | $ 28,979 | $ 18,775
Depreciation and amortization | 20,896 | 21,200 | 19,282
Irrigation [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total capital expenditures | 38,026 | 24,720 | 13,043
Depreciation and amortization | 14,198 | 14,480 | 12,834
Infrastructure [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total capital expenditures | 4,147 | 4,207 | 5,287
Depreciation and amortization | 4,417 | 4,396 | 4,023
Corporate [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total capital expenditures | 323 | 52 | 445
Depreciation and amortization | $ 2,281 | $ 2,324 | $ 2,425

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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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