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Goodwill and Intangible Assets (Tables) | 3 Months Ended
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Oct. 31, 2014
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Changes in Carrying Amount of Goodwill | Changes in the carrying amount of goodwill for the three months ended October 31, 2014, were as follows:
| IDS |  | WPS |  | Total
Balance as of July 31, 2014 | $ | 412,289 |  |  | $ | 102,715 |  |  | $ | 515,004 |
Translation adjustments | (8,205 | ) |  | (5,005 | ) |  | $ | (13,210 | )
Balance as of October 31, 2014 | $ | 404,084 |  |  | $ | 97,710 |  |  | $ | 501,794 |
Other Intangible Assets | The net book value of these assets was as follows:
| October 31, 2014 |  | July 31, 2014
| Weighted Average Amortization Period (Years) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Book Value |  | Weighted Average Amortization Period (Years) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Book Value
Amortized other intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Patents | 5 |  | $ | 11,708 |  |  | $ | (10,257 | ) |  | $ | 1,451 |  |  | 5 |  | $ | 11,656 |  |  | $ | (10,160 | ) |  | $ | 1,496 |
Trademarks and other | 5 |  | 15,002 |  |  | (11,071 | ) |  | 3,931 |  |  | 5 |  | 15,366 |  |  | (10,706 | ) |  | 4,660 |
Customer relationships | 7 |  | 143,903 |  |  | (92,472 | ) |  | 51,431 |  |  | 7 |  | 168,525 |  |  | (114,363 | ) |  | 54,162 |
Non-compete agreements and other | 4 |  | 9,841 |  |  | (9,697 | ) |  | 144 |  |  | 4 |  | 10,089 |  |  | (9,622 | ) |  | 467 |
Unamortized other intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trademarks | N/A |  | 29,694 |  |  | — |  |  | 29,694 |  |  | N/A |  | 30,229 |  |  | — |  |  | 30,229 |
Total |  |  | $ | 210,148 |  |  | $ | (123,497 | ) |  | $ | 86,651 |  |  |  |  | $ | 235,865 |  |  | $ | (144,851 | ) |  | $ | 91,014 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 Reference 2: 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=26713463&loc=d3e16323-109275 + Details
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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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