Revenue - Schedule of Disaggregation of Revenue (Details) - Revenues - Product Concentration Risk	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue percentage by product group	100.00%	100.00%	100.00%
EDA
Disaggregation of Revenue [Line Items]
Revenue percentage by product group	62.90%	62.90%	63.60%
Design IP
Disaggregation of Revenue [Line Items]
Revenue percentage by product group	26.40%	25.90%	25.10%
Software Integrity
Disaggregation of Revenue [Line Items]
Revenue percentage by product group	9.00%	9.20%	9.40%
Other
Disaggregation of Revenue [Line Items]
Revenue percentage by product group	1.70%	2.00%	1.90%