Commitments And Contingencies (Tables)

3 Months Ended

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