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Intangible Assets | 9 Months Ended
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Apr. 30, 2016
Finite-Lived Intangible Assets, Net [Abstract] |
Intangible Assets | Intangible Assets Intangible assets with finite lives as of April 30, 2016 and July 31, 2015 are as follows:
|  | April 30, 2016
|  | Weighted Average Amortization Period |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships |  | 20.5 |  | $ | 252,831,000 |  |  | 25,154,000 |  |  | $ | 227,677,000 |
Technologies |  | 12.3 |  | 82,370,000 |  |  | 41,419,000 |  |  | 40,951,000 |
Trademarks and other |  | 16.3 |  | 28,694,000 |  |  | 3,761,000 |  |  | 24,933,000 |
Total |  |  |  | $ | 363,895,000 |  |  | 70,334,000 |  |  | $ | 293,561,000 |
|  | July 31, 2015
|  | Weighted Average Amortization Period |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships |  | 10.0 |  | $ | 29,831,000 |  |  | 20,981,000 |  |  | $ | 8,850,000 |
Technologies |  | 12.1 |  | 47,370,000 |  |  | 39,266,000 |  |  | 8,104,000 |
Trademarks and other |  | 20.0 |  | 5,794,000 |  |  | 2,739,000 |  |  | 3,055,000 |
Total |  |  |  | $ | 82,995,000 |  |  | 62,986,000 |  |  | $ | 20,009,000 |
The weighted average amortization period in the above table excludes fully amortized intangible assets. Amortization expense for the three months ended April 30, 2016 and 2015 was $4,776,000 and $1,561,000, respectively. Amortization expense for the nine months ended April 30, 2016 and 2015 was $7,348,000 and $4,682,000, respectively. As of April 30, 2016, as further discussed in Note (2) - "Acquisition," intangible assets include newly acquired intangibles resulting from the TCS acquisition. The amount of the purchase price for TCS allocated to intangible assets with finite lives was based upon a preliminary valuation and estimates and assumptions that are subject to change within the measurement period (not to exceed one year from the date of acquisition). The estimated amortization expense consists of the following for the fiscal years ending July 31:
2016 | $ | 13,360,000 |
2017 | 22,786,000 |
2018 | 21,150,000 |
2019 | 17,230,000 |
2020 | 17,230,000 |

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- Definition The entire disclosure for all or part of the information related to 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 1 -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 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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