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Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Apr. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of aggregate amortization expense on intangible assets | The following table sets forth amortizable intangible assets by major asset class:
(In thousands) |  | April 30, 2018 |  | July 31, 2017
Amortized intangibles: |  |  |  |
Covenants not to compete |  | $ | 1,679 |  |  | $ | 1,702 |
Supply contracts & customer relationships |  | 76,162 |  |  | 75,462 |
Trade name |  | 24,257 |  |  | 23,859 |
Licenses and databases |  | 9,458 |  |  | 5,385 |
Accumulated amortization |  | (42,174 | ) |  | (30,470 | )
Net intangibles |  | $ | 69,382 |  |  | $ | 75,938 |
Schedule of change in carrying amount of goodwill (in thousands) | The change in the carrying amount of goodwill was as follows (in thousands):
Balance as of July 31, 2017 |  | $ | 340,243 |
Goodwill adjustments and acquisitions during the period |  | (377 | )
Effect of foreign currency exchange rates |  | 2,593 |
Balance as of April 30, 2018 |  | $ | 342,459 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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