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Segment Disclosure (Tables)
 12 Months Ended
Oct. 31, 2024
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment
Information by reportable segment is as follows:
 Year Ended October 31,
 202420232022
 (in thousands)
Total Segments:
      Revenue$6,127,436 $5,318,014 $4,615,714 
      Adjusted operating income2,362,059 1,928,027 1,579,899 
      Adjusted operating margin39 %36 %34 %
Design Automation:
      Revenue$4,221,122 $3,775,288 $3,300,173 
      Adjusted operating income1,631,885 1,413,926 1,176,101 
      Adjusted operating margin39 %37 %36 %
Design IP:
Revenue$1,906,314 $1,542,726 $1,315,541 
Adjusted operating income730,174 514,101 403,798 
Adjusted operating margin38 %33 %31 %
Schedule of Reconciliation of Operating Profit (Loss) from Segments to Consolidated The unallocated expenses managed at a consolidated level, including amortization of acquired intangible assets, stock-based compensation, changes in the fair value of deferred compensation plan, restructuring charges, and acquisition/divestiture related items, are presented in the table below to provide a reconciliation of the total adjusted operating income from segments to our consolidated operating income from continuing operations:
 Year Ended October 31,
 202420232022
 (in thousands)
Total segment adjusted operating income$2,362,059 $1,928,027 $1,579,899 
Reconciling items:
      Amortization of acquired intangible assets(124,234)(54,576)(56,311)
      Stock-based compensation expense(657,935)(513,094)(421,749)
      Deferred compensation plan(85,446)(20,196)67,516 
      Restructuring charges— (53,091)(11,221)
      Acquisition/divestiture related items(138,733)(13,831)(9,420)
Total operating income$1,355,711 $1,273,239 $1,148,714 
Schedule of Revenues Related to Operations by Geographic Areas
 Year Ended October 31,
 202420232022
 (in thousands)
Revenue:
United States
$2,739,756 $2,462,009 $2,094,470 
Europe
614,584 514,780 430,369 
China
989,524 855,023 774,265 
Korea
773,018 625,502 523,501 
Other
1,010,554 860,700 793,109 
Consolidated$6,127,436 $5,318,014 $4,615,714 
Schedule of Property and Equipment by Geographic Areas
 As of October 31,
 20242023
 (in thousands)
Property and Equipment, net:
United States
$335,306 $334,272 
Other227,700 215,565 
Total$563,006 $549,837