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Commitments And Contingencies (Tables)

6 Months Ended

Feb. 28, 2013

Commitments And Contingencies [Abstract]

Summary Of Undiscounted Environmental Remediation Liability Classifications

Environmental Remediation Liabilities
($ in thousands)		February 28,			February 29,			August 31,
Balance Sheet Classification		2013			2012			2012
Other current liabilities		$	2,244		$	2,737		$	2,414
Other noncurrent liabilities			5,200			5,200			5,200
Total environmental remediation liabilities		$	7,444		$	7,937		$	7,614

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