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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Aug. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in Carrying Value of Goodwill | The changes in the carrying amount of goodwill for the years ended August 31, 2021 and 2020 by operating segment are as follows (in thousands):
|  | IT&S |  | Other |  | Total
Balance as of August 31, 2019 |  | $ | 242,873 |  |  | $ | 17,542 |  |  | $ | 260,415 |
Acquisition of HTL Group (Note 4) |  | 11,261 |  |  | — |  |  | 11,261 |
Impact of changes in foreign currency rates |  | 9,403 |  |  | 75 |  |  | 9,478 |
Balance as of August 31, 2020 |  | 263,537 |  |  | 17,617 |  |  | 281,154 |
Impairment charge |  | — |  |  | (5,656) |  |  | (5,656) |
Impact of changes in foreign currency rates |  | 1,550 |  |  | 545 |  |  | 2,095 |
Balance as of August 31, 2021 |  | $ | 265,087 |  |  | $ | 12,506 |  |  | $ | 277,593 |
Gross Carrying Amount and Accumulated Amortization of Intangible Assets | The gross carrying value and accumulated amortization of the Company’s intangible assets are as follows (in thousands):
|  | Weighted Average Amortization Period (Year) |  | August 31, 2021 |  | August 31, 2020
|  | Gross |  | Accumulated Amortization |  | Net Book Value |  | Gross |  | Accumulated Amortization |  | Net Book Value
Amortizable intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | 14 |  | $ | 142,453 |  |  | $ | 114,463 |  |  | $ | 27,990 |  |  | $ | 141,853 |  |  | $ | 106,491 |  |  | $ | 35,362 |
Patents |  | 12 |  | 14,492 |  |  | 13,688 |  |  | 804 |  |  | 14,365 |  |  | 13,228 |  |  | 1,137 |
Trademarks and tradenames |  | 12 |  | 3,307 |  |  | 2,391 |  |  | 916 |  |  | 3,277 |  |  | 2,257 |  |  | 1,020 |
Indefinite lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tradenames |  | N/A |  | 24,835 |  |  | — |  |  | 24,835 |  |  | 24,863 |  |  | — |  |  | 24,863 |
|  |  |  | $ | 185,087 |  |  | $ | 130,542 |  |  | $ | 54,545 |  |  | $ | 184,358 |  |  | $ | 121,976 |  |  | $ | 62,382 |
Schedule of Impairment Charge [Table Text Block] |

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- Definition Schedule Of Finite Lived And Indefinite Lived Intangible Assets [Table Text Block] + References No definition available. + Details
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- Definition The entire disclosure for the details of the charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Disclosure may also include a description of the impaired asset and facts and circumstances leading to the impairment, amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired asset is reported. + References No definition available. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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