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Credit Facilities (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended
May 31, 2014
May 28, 2014
Oct. 31, 2012
Debt Disclosure [Abstract]      
Initial borrowing capacity     $ 35.0
Minimum excess borrowing availability with no financial covenant restrictions     5.0
Maximum borrowing capacity     50.0
Unused line fee 0.50%    
Basis spread on interest rate 2.00%    
Maximum repurchased stock and dividends with no financial covenant restrictions   $ 15.0