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Goodwill and Other Intangible Assets | 9 Months Ended
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Jul. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangible Assets |
5. | Goodwill and other intangible assets
Changes in the carrying amount of goodwill for the nine months ended July 31, 2020 by operating segment are as follows:
|  | Industrial Precision Solutions |  |  | Advanced Technology Solutions |  |  | Total |
Balance at October 31, 2019 |  | $ | 411,461 |  |  | $ | 1,203,278 |  |  | $ | 1,614,739 |
Acquisitions |  |  | — |  |  |  | 76,047 |  |  |  | 76,047 |
Currency effect |  |  | 6,088 |  |  |  | 5,040 |  |  |  | 11,128 |
Balance at July 31, 2020 |  | $ | 417,549 |  |  | $ | 1,284,365 |  |  | $ | 1,701,914 |
As part of our change in operating segments as described in Note 11, we considered whether the reporting units used for purposes of assessing impairment of goodwill should be changed and concluded that no changes were necessary. Information regarding our intangible assets subject to amortization is as follows:
|  | July 31, 2020 |
|  | Carrying Amount |  |  | Accumulated Amortization |  |  | Net Book Value |
Customer relationships |  | $ | 503,804 |  |  | $ | 203,589 |  |  | $ | 300,215 |
Patent/technology costs |  |  | 163,550 |  |  |  | 81,590 |  |  |  | 81,960 |
Trade name |  |  | 98,691 |  |  |  | 46,553 |  |  |  | 52,138 |
Non-compete agreements |  |  | 12,472 |  |  |  | 10,972 |  |  |  | 1,500 |
Other |  |  | 1,401 |  |  |  | 1,397 |  |  |  | 4 |
Total |  | $ | 779,918 |  |  | $ | 344,101 |  |  | $ | 435,817 |
|  | October 31, 2019 |
|  | Carrying Amount |  |  | Accumulated Amortization |  |  | Net Book Value |
Customer relationships |  | $ | 480,007 |  |  | $ | 173,996 |  |  | $ | 306,011 |
Patent/technology costs |  |  | 154,735 |  |  |  | 71,663 |  |  |  | 83,072 |
Trade name |  |  | 96,655 |  |  |  | 41,303 |  |  |  | 55,352 |
Non-compete agreements |  |  | 11,540 |  |  |  | 10,406 |  |  |  | 1,134 |
Other |  |  | 1,400 |  |  |  | 1,394 |  |  |  | 6 |
Total |  | $ | 744,337 |  |  | $ | 298,762 |  |  | $ | 445,575 |
Amortization expense for the three months ended July 31, 2020 and 2019 was $16,577 and $13,903, respectively. Amortization expense for the nine months ended July 31, 2020 and 2019 was $47,410 and $41,665, respectively. Refer to Note 3 for an explanation of the change in goodwill and intangible assets due to the Fluortek acquisition.

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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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