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Goodwill and Other Intangible Assets (Tables) | 6 Months Ended
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Feb. 28, 2017 | Feb. 29, 2016
Goodwill and Intangible Assets Disclosure [Abstract] |  |
Asset Impairment Charges [Table Text Block] |  | A summary of the second quarter fiscal 2016 impairment charge by reporting unit is as follows (in thousands):
| Cortland |  | Viking |  | maximatecc |  | Total
Goodwill | $ | 34,502 |  |  | $ | 39,099 |  |  | $ | 44,521 |  |  | $ | 118,122 |
Indefinite lived intangible assets | 2,211 |  |  | 13,289 |  |  | 1,153 |  |  | 16,653 |
Amortizable intangible assets | — |  |  | 27,952 |  |  | — |  |  | 27,952 |
Fixed assets | — |  |  | 23,784 |  |  | — |  |  | 23,784 |
| $ | 36,713 |  |  | $ | 104,124 |  |  | $ | 45,674 |  |  | $ | 186,511 |
Schedule of Goodwill | The changes in the carrying value of goodwill for the six months ended February 28, 2017 are as follows (in thousands):
| Industrial |  | Energy |  | Engineered Solutions |  | Total
Balance as of August 31, 2016 | $ | 101,739 |  |  | $ | 187,321 |  |  | $ | 230,216 |  |  | $ | 519,276 |
Purchase accounting adjustments | (59 | ) |  | 2,320 |  |  | — |  |  | 2,261 |
Impact of changes in foreign currency rates | (1,812 | ) |  | (4,947 | ) |  | (5,700 | ) |  | (12,459 | )
Balance as of February 28, 2017 | $ | 99,868 |  |  | $ | 184,694 |  |  | $ | 224,516 |  |  | $ | 509,078 |
Schedule Of Finite Lived And Indefinite Lived Intangible Assets Table | The gross carrying value and accumulated amortization of the Company’s other intangible assets are as follows (in thousands):
|  |  | February 28, 2017 |  | August 31, 2016
| Weighted Average Amortization Period (Years) |  | Gross Carrying Value |  | Accumulated Amortization |  | Net Book Value |  | Gross Carrying Value |  | Accumulated Amortization |  | Net Book Value
Amortizable intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships | 15 |  | $ | 287,584 |  |  | $ | 171,853 |  |  | $ | 115,731 |  |  | $ | 292,671 |  |  | $ | 166,252 |  |  | $ | 126,419 |
Patents | 11 |  | 29,992 |  |  | 23,047 |  |  | 6,945 |  |  | 30,296 |  |  | 22,233 |  |  | 8,063 |
Trademarks and tradenames | 18 |  | 21,200 |  |  | 8,503 |  |  | 12,697 |  |  | 21,283 |  |  | 7,936 |  |  | 13,347 |
Other intangibles | 3 |  | 6,506 |  |  | 5,950 |  |  | 556 |  |  | 6,627 |  |  | 5,890 |  |  | 737 |
Indefinite lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |
Tradenames | N/A |  | 89,630 |  |  | — |  |  | 89,630 |  |  | 90,909 |  |  | — |  |  | 90,909 |
|  |  | $ | 434,912 |  |  | $ | 209,353 |  |  | $ | 225,559 |  |  | $ | 441,786 |  |  | $ | 202,311 |  |  | $ | 239,475 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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