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Goodwill and Intangible Assets (Tables) | 6 Months Ended
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Jan. 31, 2017
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) |  | January 31, 2017 |  | July 31, 2016
Amortized intangibles: |  |  |  |
Covenants not to compete |  | $ | 1,708 |  |  | $ | 1,702 |
Supply contracts & customer relationships |  | 26,689 |  |  | 26,471 |
Trade name |  | 5,095 |  |  | 5,163 |
Licenses and databases |  | 2,469 |  |  | 2,488 |
Accumulated amortization |  | (27,023 | ) |  | (24,063 | )
Net intangibles |  | $ | 8,938 |  |  | $ | 11,761 |
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, 2016 |  | $ | 260,198 |
Effect of foreign currency exchange rates |  | (3,331 | )
Balance as of January 31, 2017 |  | $ | 256,867 |

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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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