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Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands | Jan. 31, 2018 | Oct. 31, 2017
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Gross Assets | $ 1,376,059 | $ 1,166,198
Accumulated Amortization | 941,520 | 912,355
Net Assets | 434,539 | 253,843
Core/developed technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Assets | 749,186 | 647,975
Accumulated Amortization | 544,173 | 526,796
Net Assets | 205,013 | 121,179
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Assets | 354,091 | 278,811
Accumulated Amortization | 175,383 | 166,886
Net Assets | 178,708 | 111,925
Contract rights intangible |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Assets | 183,478 | 174,615
Accumulated Amortization | 173,524 | 172,178
Net Assets | 9,954 | 2,437
Trademarks and trade names |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Assets | 42,929 | 25,329
Accumulated Amortization | 18,426 | 17,401
Net Assets | 24,503 | 7,928
In Process Research and Development |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Assets | 12,700 | 6,600
Accumulated Amortization | 0 | 0
Net Assets | 12,700 | 6,600
Capitalized software development costs |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Assets | 33,675 | 32,868
Accumulated Amortization | 30,014 | 29,094
Net Assets | $ 3,661 | $ 3,774

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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