Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Date the derivative contract matures, in CCYY-MM-DD format.

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Nominal or face amount used to calculate payment on derivative.

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Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.

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Amount before tax of foreign currency transaction unrealized gain (loss) recognized in the income statement.

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Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

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Fair value of financial and nonfinancial obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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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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Basis Of Presentation And Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($)	3 Months Ended
	Nov. 30, 2019	Nov. 30, 2018	Sep. 01, 2019	Aug. 31, 2019
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Realized foreign currency transactions	$ 0	$ 0
Unrealized foreign currency transactions	(394,000)	(210,000)
Carrying value of senior notes	61,152,000			$ 60,221,000
Assets	317,491,000			302,662,000
Liabilities	171,499,000			$ 157,187,000
Foreign Currency Forward Contracts [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Foreign currency forward contracts outstanding	$ 9,600,000
Foreign currency forward contracts, Maturity date	Feb. 28, 2020
Unrealized foreign currency transactions	$ 0	0
Level 2 [Member] \| Recurring [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Assets	0
Liabilities		0
Level 2 [Member] \| Nonrecurring [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Assets	0
Liabilities		$ 0
Senior Notes [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Fair value of senior notes	19,200,000
Carrying value of senior notes	$ 18,400,000
Accounting Standards Update 2018-11 [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Assets			$ 9,000,000.0
Liabilities			$ 9,200,000