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Commitments And Contingencies (Tables)

6 Months Ended

Feb. 28, 2018

Commitments And Contingencies Disclosure [Abstract]

Summary Of Undiscounted Environmental Remediation Liability Classifications

($ in thousands)		February 28, 2018				February 28, 2017				August 31, 2017
Other current liabilities		$	1,544			$	1,722			$	2,095
Other noncurrent liabilities			15,677				16,933				15,937
Total environmental remediation liabilities		$	17,221			$	18,655			$	18,032

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