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Goodwill and Intangible Assets | 9 Months Ended
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Apr. 30, 2019
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Goodwill and Intangible Assets | Other Intangible Assets Other intangible assets include patents, trademarks, and customer relationships with finite lives being amortized in accordance with the accounting guidance for other intangible assets. The Company also has unamortized indefinite-lived trademarks that are classified as other intangible assets. The net book value of these assets was as follows:
| April 30, 2019 |  | July 31, 2018
| 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: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships and other | 8 |  | $ | 52,203 |  |  | $ | (33,487 | ) |  | $ | 18,716 |  |  | 9 |  | $ | 61,944 |  |  | $ | (38,872 | ) |  | $ | 23,072 |
Unamortized other intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trademarks | N/A |  | 19,419 |  |  | — |  |  | 19,419 |  |  | N/A |  | 19,516 |  |  | — |  |  | 19,516 |
Total |  |  | $ | 71,622 |  |  | $ | (33,487 | ) |  | $ | 38,135 |  |  |  |  | $ | 81,460 |  |  | $ | (38,872 | ) |  | $ | 42,588 |
Amortization expense of intangible assets was $1,443 and $1,620 for the three months ended April 30, 2019 and 2018, respectively, and $4,314 and $4,930 for the nine months ended April 30, 2019 and 2018, respectively. The amortization over each of the next five fiscal years is projected to be $5,708, $5,183, $5,144, $5,002 and $2,025 for the fiscal years ending July 31, 2019, 2020, 2021, 2022 and 2023, respectively.

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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- References No definition available. + Details
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