Segment Disclosure - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Segment Reporting Information [Line Items]
Total revenue	$ 1,394,863	$ 1,279,229	$ 2,756,203	$ 2,549,484
Adjusted operating income	287,332	363,701	543,264	710,737
Operating Segments
Segment Reporting Information [Line Items]
Adjusted operating income	$ 464,727	$ 470,153	$ 943,894	$ 929,544
Adjusted operating margin	33.00%	37.00%	34.00%	36.00%
Operating Segments | Design Automation:
Segment Reporting Information [Line Items]
Total revenue	$ 927,568	$ 817,853	$ 1,817,414	$ 1,621,714
Adjusted operating income	$ 360,090	$ 321,389	$ 706,099	$ 614,660
Adjusted operating margin	39.00%	39.00%	39.00%	38.00%
Operating Segments | Design IP:
Segment Reporting Information [Line Items]
Total revenue	$ 335,176	$ 348,524	$ 678,827	$ 707,357
Adjusted operating income	$ 86,321	$ 135,739	$ 203,946	$ 289,860
Adjusted operating margin	26.00%	39.00%	30.00%	41.00%
Operating Segments | Software Integrity:
Segment Reporting Information [Line Items]
Total revenue	$ 132,119	$ 112,852	$ 259,962	$ 220,413
Adjusted operating income	$ 18,316	$ 13,025	$ 33,849	$ 25,024
Adjusted operating margin	14.00%	12.00%	13.00%	11.00%