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Goodwill and Intangible Assets | 3 Months Ended
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Oct. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Intangible Assets | NOTE 4 – Goodwill and Intangible Assets The following table sets forth amortizable intangible assets by major asset class:
(In thousands) |  | October 31, 2018 |  | July 31, 2018
Amortized intangibles: |  |  |  |
Covenants not to compete |  | $ | 1,668 |  |  | $ | 1,666 |
Supply contracts & customer relationships |  | 73,105 |  |  | 71,787 |
Trade name |  | 24,092 |  |  | 24,173 |
Licenses and databases |  | 9,341 |  |  | 9,291 |
Accumulated amortization |  | (45,309 | ) |  | (42,025 | )
Net intangibles |  | $ | 62,897 |  |  | $ | 64,892 |
Aggregate amortization expense on amortizable intangible assets was $2.9 million and $3.8 million for the three months ended October 31, 2018 and 2017, respectively. The change in the carrying amount of goodwill was as follows (in thousands):
Balance as of July 31, 2018 |  | $ | 337,235 |
Effect of foreign currency exchange rates |  | (2,115 | )
Balance as of October 31, 2018 |  | $ | 335,120 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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