Debt And Capital Lease Obligations (Schedule Of Maturities Of The New Credit Facility) (Details) (New Credit Facility [Member], USD $) In Thousands, unless otherwise specified	Aug. 31, 2013
New Credit Facility [Member]
Line of Credit Facility [Line Items]
2014	$ 12,500
2015	25,000
2016	25,000
2017	50,000
2018	137,500
Total	$ 250,000

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year.

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-Name Accounting Standards Codification

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year.

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