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Goodwill and Intangible Assets - Amortization Expense Related to Intangible Assets (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Apr. 30, 2018 | Apr. 30, 2017 | Apr. 30, 2018 | Apr. 30, 2017
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |
Amortization expense of intangible assets | $ 32,082 | $ 28,486 | $ 61,549 | $ 58,971
Core/developed technology |  |  |  |
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |
Amortization expense of intangible assets | 18,985 | 16,471 | 37,053 | 34,754
Customer relationships |  |  |  |
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |
Amortization expense of intangible assets | 9,656 | 6,844 | 18,219 | 13,736
Contract rights intangible |  |  |  |
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |
Amortization expense of intangible assets | 1,372 | 3,286 | 2,262 | 6,677
Trademarks and trade names |  |  |  |
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |
Amortization expense of intangible assets | 1,172 | 896 | 2,198 | 1,838
Capitalized software development costs |  |  |  |
Finite Lived Intangible Assets Amortization Expense [Line Items] |  |  |  |
Amortization expense of intangible assets | $ 897 | $ 989 | $ 1,817 | $ 1,966

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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://www.xbrl.org/2003/role/presentationRef -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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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