Revenue - Schedule of Disaggregation of Revenue (Details) - Product Concentration Risk - Revenues	12 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2022
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	66.40%	69.20%	69.20%
Design IP
Disaggregation of Revenue [Line Items]
Revenue percentage by product group	31.10%	29.00%	28.50%
Other
Disaggregation of Revenue [Line Items]
Revenue percentage by product group	2.50%	1.80%	2.30%