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Acquisitions Preliminary allocation of consideration (Tables) | 12 Months Ended
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Aug. 31, 2016
Business Acquisition [Line Items] |
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] | The allocation of consideration for net assets acquired in our aggregate acquisitions during the year ended August 31, 2015 is summarized as follows:
|  | (Dollars in thousands)
Current assets |  | $ | 60,577 |
Property, plant and equipment |  | 312,288 |
Goodwill |  | 423 |
Other assets |  | 16,118 |
Current liabilities |  | (60,127 | )
Other liabilities |  | (8,261 | )
Total net assets acquired |  | $ | 321,018 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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