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Intangible Assets and Long-Lived Assets (Tables) | 12 Months Ended
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Jul. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Finite-Lived Intangible Assets [Table Text Block] | Other intangible assets as of July 31, 2022 and 2021, consisted of the following:
| July 31, 2022 |  | July 31, 2021
| Weighted Average Amortization Period (Years) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Book Value |  | Weighted Average Amortization Period (Years) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Book Value
Amortized other intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tradenames | 3 |  | $ | 1,749 |  |  | $ | (1,014) |  |  | $ | 735 |  |  | 3 |  | $ | 1,821 |  |  | $ | (356) |  |  | $ | 1,465 |
Customer relationships | 9 |  | 105,404 |  |  | (48,428) |  |  | 56,976 |  |  | 9 |  | 110,950 |  |  | (39,069) |  |  | 71,881 |
Technology | 5 |  | 9,136 |  |  | (2,241) |  |  | 6,895 |  |  | 5 |  | 9,578 |  |  | (335) |  |  | 9,243 |
Unamortized other intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tradenames | N/A |  | 9,422 |  |  | — |  |  | 9,422 |  |  | N/A |  | 9,745 |  |  | — |  |  | 9,745 |
Total |  |  | $ | 125,711 |  |  | $ | (51,683) |  |  | $ | 74,028 |  |  |  |  | $ | 132,094 |  |  | $ | (39,760) |  |  | $ | 92,334 |

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