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Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Aug. 31, 2017 | Aug. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items] |  |
Debt Issuance Costs, Net | $ 4,820 | $ 5,574
Minimum | Subsidiaries |  |
Income Taxes [Abstract] |  |
Subsidiaries Ownership Percentage | 80.00% |
Minimum | Other Intangible Assets [Member] |  |
Finite-Lived Intangible Assets, Net |  |
Finite-Lived Intangible Asset, Useful Life | 2 years |
Minimum | Major Maintenance Activities Requiring Shutdown |  |
Finite-Lived Intangible Assets, Net |  |
Finite-Lived Intangible Asset, Useful Life | 2 years |
Minimum | Land and Land Improvements |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Property, Plant and Equipment, Useful Life | 15 years |
Minimum | Building |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Property, Plant and Equipment, Useful Life | 20 years |
Minimum | Machinery, Equipment, Office and Other |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Property, Plant and Equipment, Useful Life | 5 years |
Minimum | Property, Plant and Equipment, Other Types [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Property, Plant and Equipment, Useful Life | 3 years |
Maximum | Other Intangible Assets [Member] |  |
Finite-Lived Intangible Assets, Net |  |
Finite-Lived Intangible Asset, Useful Life | 30 years |
Maximum | Major Maintenance Activities Requiring Shutdown |  |
Finite-Lived Intangible Assets, Net |  |
Finite-Lived Intangible Asset, Useful Life | 4 years |
Maximum | Land and Land Improvements |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Property, Plant and Equipment, Useful Life | 20 years |
Maximum | Building |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Property, Plant and Equipment, Useful Life | 40 years |
Maximum | Machinery, Equipment, Office and Other |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Property, Plant and Equipment, Useful Life | 20 years |
Maximum | Property, Plant and Equipment, Other Types [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Property, Plant and Equipment, Useful Life | 10 years |
Accounting Standards Update 2015-03 [Member] | Other Assets [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Debt Issuance Costs, Net |  | $ 5,600

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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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