Revenue - Schedule of Disaggregation of Revenue (Details) - Product Concentration Risk - Revenue	3 Months Ended		6 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue percentage by product group	100.00%	100.00%	100.00%	100.00%
EDA
Disaggregation of Revenue [Line Items]
Revenue percentage by product group	69.30%	71.30%	66.70%	71.10%
Design IP
Disaggregation of Revenue [Line Items]
Revenue percentage by product group	27.50%	26.50%	31.20%	27.20%
Other
Disaggregation of Revenue [Line Items]
Revenue percentage by product group	3.20%	2.20%	2.10%	1.70%