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Goodwill and Other Intangible Assets Intangibles (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Feb. 28, 2019 | Feb. 28, 2018 | Feb. 28, 2019 | Feb. 28, 2018 | Aug. 31, 2018
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization of Intangible Assets | $ 800 | $ 800 | $ 1,500 | $ 1,700 |
Other Intangible Assets [Member] | Minimum [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 2 years |  |
Other Intangible Assets [Member] | Maximum [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 30 years |  |
Customer Lists [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Carrying Amount | 40,815 |  | $ 40,815 |  | $ 40,815
Finite-Lived Intangible Assets, Accumulated Amortization | (14,500) |  | (14,500) |  | (13,082)
Finite-Lived Intangible Assets, Net | 26,315 |  | 26,315 |  | 27,733
Trademarks and other intangible assets [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Carrying Amount | 6,536 |  | 6,536 |  | 6,536
Finite-Lived Intangible Assets, Accumulated Amortization | (5,038) |  | (5,038) |  | (4,931)
Finite-Lived Intangible Assets, Net | 1,498 |  | 1,498 |  | 1,605
Total intangible assets [Domain] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Carrying Amount | 47,351 |  | 47,351 |  | 47,351
Finite-Lived Intangible Assets, Accumulated Amortization | (19,538) |  | (19,538) |  | (18,013)
Finite-Lived Intangible Assets, Net | $ 27,813 |  | $ 27,813 |  | $ 29,338

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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