Derivative Financial Instruments and Hedging Activities - Pretax Gains (Losses) Recorded in Other Comprehensive Income Relating to Cash Flow Hedges (Details) - USD ($) $ in Thousands	12 Months Ended
Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2023
Cash Flow Hedging [Member] \| Commodity [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments and Tax	$ 965	$ (605)	$ (12,285)

Amount, after tax and adjustments, of gain (loss) from increase (decrease) in value of excluded component of derivative designated and qualifying as hedge. Adjustments include, but are not limited to, reclassifications for sale and settlement, and amounts recognized under systematic and rational method.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(19))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 10A
-Subparagraph (dd)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A

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