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Intangibles, Net (Tables) | 12 Months Ended
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Jul. 31, 2019
Intangible Assets, Net (Excluding Goodwill) [Abstract] |
Schedule of intangible assets | The following table sets forth amortizable intangible assets by major asset class:
|  | Gross Carrying Amount |  | Accumulated Amortization | Net Book Value |  | Weighted Average Remaining Useful Life (in years)
|  | July 31, |  | July 31, |  | July 31, |  | July 31,
(In thousands, except remaining useful life) |  | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Amortized intangibles: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Supply contracts and customer relationships |  | $ | 49,109 |  |  | $ | 71,787 |  |  | $ | (11,900 | ) |  | $ | (29,601 | ) |  | $ | 37,209 |  |  | $ | 42,186 |  |  | 9 |  | 10
Trade names |  | 23,501 |  |  | 24,173 |  |  | (8,010 | ) |  | (6,405 | ) |  | 15,491 |  |  | 17,768 |  |  | 7 |  | 1
Licenses and databases |  | 7,688 |  |  | 9,291 |  |  | (5,232 | ) |  | (4,363 | ) |  | 2,456 |  |  | 4,928 |  |  | 2 |  | 2
Covenants not to compete |  | — |  |  | 1,666 |  |  | — |  |  | (1,656 | ) |  | — |  |  | 10 |  |  | 0 |  | 0
Total Intangibles |  | $ | 80,298 |  |  | $ | 106,917 |  |  | $ | (25,142 | ) |  | $ | (42,025 | ) |  | $ | 55,156 |  |  | $ | 64,892 |  |  |  |  |
Schedule of aggregate amortization expense on intangible assets | Intangible amortization expense for the next five fiscal years based upon July 31, 2019 intangible assets is expected to be as follows:
(In thousands) |  |
2020 |  | $ | 8,613 |
2021 |  | 6,129 |
2022 |  | 6,074 |
2023 |  | 5,973 |
2024 |  | 5,729 |
Thereafter |  | 22,638 |
Total future intangible amortization expense |  | $ | 55,156 |

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