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Commitments and Contingencies (Tables) | 6 Months Ended
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Feb. 28, 2015
Unrecorded Unconditional Purchase Obligation [Line Items] |
Unrecorded Unconditional Purchase Obligations Disclosure [Table Text Block] | Minimum future payments required under long-term unconditional purchase obligations as of February 28, 2015 are as follows:
| Payments Due by Period
| Total |  | Less than 1 Year |  | 1 - 3 Years |  | 3 - 5 Years |  | More than 5 Years
| (Dollars in thousands)
Long-term unconditional purchase obligations | $ | 1,051,453 |  |  | $ | 61,285 |  |  | $ | 170,393 |  |  | $ | 152,840 |  |  | $ | 666,935 |

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- Definition Tabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308 + Details
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