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Goodwill and Intangible Assets - Amortization Expense Related to Intangible Assets (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2021 | Apr. 30, 2020 | Apr. 30, 2021 | Apr. 30, 2020
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |  |  |
Amortization expense of intangible assets | $ 20,793 |  | $ 25,028 |  | $ 42,107 | $ 48,462
Core/developed technology |  |  |  |  |  |
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |  |  |
Amortization expense of intangible assets | 10,969 |  | 12,724 |  | 21,986 | 25,042
Customer relationships |  |  |  |  |  |
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |  |  |
Amortization expense of intangible assets | 7,703 |  | 8,912 |  | 15,482 | 17,474
Contract rights intangible |  |  |  |  |  |
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |  |  |
Amortization expense of intangible assets | 439 |  | 1,681 |  | 1,309 | 2,557
Trademarks and trade names |  |  |  |  |  |
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |  |  |
Amortization expense of intangible assets | 610 |  | 778 |  | 1,220 | 1,555
Capitalized software development costs |  |  |  |  |  |
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |  |  |
Amortization expense of intangible assets | $ 1,072 | [1] | $ 933 | [1] | $ 2,110 | $ 1,834
[1] | Amortization of capitalized software development costs is included in cost of products revenue in the unaudited condensed consolidated statements of operations.

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- Definition Finite Lived Intangible Assets Amortization Expense [Line Items] + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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