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Goodwill and Intangible Assets - Amortization Expense Related to Intangible Assets (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2018
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization of intangible expense |  | $ 95,004 | $ 103,782 | $ 129,263
Core/developed technology |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization of intangible expense |  | 47,890 | 56,163 | 78,820
Customer relationships |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization of intangible expense |  | 35,075 | 37,533 | 37,395
Contract rights intangible |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization of intangible expense |  | 5,181 | 3,581 | 4,906
Trademarks and trade names |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization of intangible expense |  | 3,135 | 3,637 | 4,543
Capitalized software development costs |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization of intangible expense | [1] | $ 3,723 | $ 2,868 | $ 3,599
[1] | Amortization of capitalized software development costs is included in cost of products revenue in the consolidated statements of operations.

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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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