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Commitments And Contingencies (Tables) | 12 Months Ended
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Aug. 31, 2013
Commitments And Contingencies [Abstract] |
Summary Of Undiscounted Environmental Remediation Liability Classifications |
Environmental Remediation Liabilities
$ in thousands |  | August 31, |  | August 31,
Balance Sheet Location |  | 2013 |  | 2012
Other current liabilities |  | $ | 1,740 |  | $ | 2,414
Other noncurrent liabilities |  |  | 5,200 |  |  | 5,200
Total environmental remediation liabilities |  | $ | 6,940 |  | $ | 7,614
Schedule Of Future Minimum Lease Payments |
| Fiscal Years |  | $ in thousands |
| 2014 |  | $ | 2,590 |
| 2015 |  |  | 1,904 |
| 2016 |  |  | 1,260 |
| 2017 |  |  | 1,011 |
| 2018 |  |  | 791 |
| Thereafter |  |  | 970 |
|  |  | $ | 8,526 |

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- Definition Summary Of Undiscounted Environmental Remediation Liability Classifications [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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