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Segment Disclosure (Tables)
 12 Months Ended
Oct. 31, 2023
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment
Information by reportable segment is as follows:
 Year Ended October 31,
 202320222021
 (in thousands)
Total Segments:
      Revenue$5,842,619 $5,081,542 $4,204,193 
      Adjusted operating income2,048,045 1,675,102 1,281,389 
      Adjusted operating margin35 %33 %30 %
Design Automation:
      Revenue$3,775,287 $3,300,173 $2,754,737 
      Adjusted operating income1,439,666 1,206,561 924,605 
      Adjusted operating margin38 %37 %34 %
Design IP:
Revenue$1,542,726 $1,315,541 $1,055,672 
Adjusted operating income532,055 421,547 318,473 
Adjusted operating margin34 %32 %30 %
Software Integrity:
      Revenue$524,606 $465,828 $393,784 
      Adjusted operating income76,324 46,994 38,311 
      Adjusted operating margin15 %10 %10 %
Reconciliation of Operating Profit (Loss) from Segments to Consolidated The unallocated expenses managed at a consolidated level, including amortization of intangible assets, stock-based compensation, changes in the fair value of deferred compensation plan, restructuring charges, and certain other operating expenses, are presented in the table below to provide a reconciliation of the total adjusted operating income from segments to our consolidated operating income:
 Year Ended October 31,
 202320222021
 (in thousands)
Total segment adjusted operating income$2,048,045 $1,675,102 $1,281,389 
Reconciling items:
      Amortization of intangible assets(102,889)(96,690)(82,380)
      Stock-based compensation expense(563,292)(459,029)(345,272)
      Deferred compensation plan(20,488)68,778 (71,603)
      Restructuring charges(77,002)(12,057)(33,405)
      Other(15,115)(14,066)(13,939)
Total operating income$1,269,259 $1,162,038 $734,790 
Revenues Related to Operations by Geographic Areas Revenue and property and equipment, net, related to operations in the United States and other geographic areas are:
 Year Ended October 31,
 202320222021
 (in thousands)
Revenue:
United States
$2,786,064 $2,349,766 $1,951,964 
Europe
595,634 493,430 440,825 
China
886,256 795,405 562,711 
Korea
634,802 531,542 427,471 
Other
939,863 911,399 821,222 
Consolidated$5,842,619 $5,081,542 $4,204,193 
Property and Equipment by Geographic Areas
 As of October 31,
 20232022
 (in thousands)
Property and Equipment, net:
United States
$338,260 $297,780 
Other219,001 185,520 
Total$557,261 $483,300