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Goodwill and Intangible Assets - Amortizable Intangible Assets (Details) - USD ($) $ in Thousands | Apr. 30, 2022 | Jul. 31, 2021
--- | --- | ---
Amortized intangibles: |  |
Accumulated amortization | $ (34,867) | $ (29,405)
Intangibles, net | 40,854 | 45,873
Supply contracts and customer relationships |  |
Amortized intangibles: |  |
Gross carrying amount | 56,158 | 55,598
Trade names |  |
Amortized intangibles: |  |
Gross carrying amount | 18,906 | 18,944
Licenses and databases |  |
Amortized intangibles: |  |
Gross carrying amount | $ 657 | $ 736

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