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Stock And Stock-Based Incentive Plans (Expected Cash Settlement Range Upon Restricted Stock Unit Vesting) (Details) (USD $)
In Thousands, unless otherwise specified
Aug. 31, 2014
Minimum [Member]
  
Fiscal 2016 $ 12,376 [1]
Fiscal 2017 14,100 [1]
Fiscal 2018 16,285 [1]
Total expected cash settlements 42,761 [1]
Maximum [Member]
  
Fiscal 2016 33,003 [1]
Fiscal 2017 37,600 [1]
Fiscal 2018 43,428 [1]
Total expected cash settlements $ 114,031 [1]
[1] (1)Net of estimated forfeitures.