Fair Value Measurements - Narrative (Details) - USD ($)	May 31, 2024	Aug. 31, 2023
2.150% Senior Unsecured Notes Due December 2030 \| Estimate of Fair Value Measurement \| Unsecured debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying and estimated fair values of financial instruments	$ 416,000,000	$ 401,400,000
Revolving Credit Facility \| Line of Credit \| Credit facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term borrowings outstanding	0	0
Approximate fair value of short term borrowings	$ 0	$ 0

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 fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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