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Commitments And Contingencies (Tables) | 3 Months Ended
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Nov. 30, 2013
Commitments And Contingencies [Abstract] |
Summary Of Undiscounted Environmental Remediation Liability Classifications |
Environmental Remediation Liabilities
($ in thousands) |  | November 30, |  | November 30, |  | August 31,
Balance Sheet Classification |  | 2013 |  | 2012 |  | 2013
Other current liabilities |  | $ | 1,516 |  | $ | 2,391 |  | $ | 1,740
Other noncurrent liabilities |  |  | 5,200 |  |  | 5,200 |  |  | 5,200
Total environmental remediation liabilities |  | $ | 6,716 |  | $ | 7,591 |  | $ | 6,940

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