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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

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