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Goodwill and Other Intangible Assets Schedule of Goodwill (Tables) | 12 Months Ended
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Jul. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill [Table Text Block] | Changes in the carrying amount of goodwill by reportable segment for the years ended July 31, 2019 and 2018, were as follows:
| IDS |  | WPS |  | Total
Balance as of July 31, 2017 | $ | 391,864 |  |  | $ | 45,833 |  |  | $ | 437,697 |
Translation adjustments | (6,340 | ) |  | (1,487 | ) |  | (7,827 | )
Divestiture | — |  |  | (10,055 | ) |  | (10,055 | )
Balance as of July 31, 2018 | $ | 385,524 |  |  | $ | 34,291 |  |  | $ | 419,815 |
Translation adjustments | (6,519 | ) |  | (2,309 | ) |  | (8,828 | )
Balance as of July 31, 2019 | $ | 379,005 |  |  | $ | 31,982 |  |  | $ | 410,987 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267 + Details
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