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Intangibles, Net (Tables) | 12 Months Ended
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Jul. 31, 2018
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) |  | 2018 |  | 2017 |  | 2018 |  | 2017 |  | 2018 |  | 2017 |  | 2018 |  | 2017
Amortized intangibles: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Covenants not to compete |  | $ | 1,666 |  |  | $ | 1,702 |  |  | $ | (1,656 | ) |  | $ | (1,389 | ) |  | $ | 10 |  |  | $ | 313 |  |  | 0 |  | 1
Supply contracts and customer relationships |  | 71,787 |  |  | 75,462 |  |  | (29,601 | ) |  | (22,248 | ) |  | 42,186 |  |  | 53,214 |  |  | 10 |  | 9
Trade names |  | 24,173 |  |  | 23,859 |  |  | (6,405 | ) |  | (4,989 | ) |  | 17,768 |  |  | 18,870 |  |  | 1 |  | 2
Licenses and databases |  | 9,291 |  |  | 5,385 |  |  | (4,363 | ) |  | (1,844 | ) |  | 4,928 |  |  | 3,541 |  |  | 2 |  | 3
Intangibles, net |  | $ | 106,917 |  |  | $ | 106,408 |  |  | $ | (42,025 | ) |  | $ | (30,470 | ) |  | $ | 64,892 |  |  | $ | 75,938 |  |  |  |  |
Schedule of aggregate amortization expense on intangible assets | Intangible amortization expense for the next five fiscal years based upon July 31, 2018 intangible assets is expected to be as follows:
(In thousands) |  |
2019 |  | $ | 10,455 |
2020 |  | 8,421 |
2021 |  | 5,997 |
2022 |  | 5,939 |
2023 |  | 5,868 |
Thereafter |  | 28,212 |
Total future intangible amortization expense |  | $ | 64,892 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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