Segment Disclosure - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Segment Reporting Information [Line Items]
Revenue	$ 1,739,737	$ 1,525,749	$ 4,799,318	$ 4,491,450
Adjusted operating income	165,269	360,211	793,534	1,044,909
Design Automation:
Segment Reporting Information [Line Items]
Revenue	1,312,166	1,062,666	3,454,617	3,102,938
Adjusted operating income	$ 583,755	$ 440,864	$ 1,447,181	$ 1,218,574
Adjusted operating margin	44.00%	41.00%	42.00%	39.00%
Design IP:
Segment Reporting Information [Line Items]
Revenue	$ 427,571	$ 463,083	$ 1,344,701	$ 1,388,512
Adjusted operating income	$ 86,023	$ 169,725	$ 363,084	$ 540,249
Adjusted operating margin	20.00%	37.00%	27.00%	39.00%
Operating Segments
Segment Reporting Information [Line Items]
Adjusted operating income	$ 669,778	$ 610,589	$ 1,810,265	$ 1,758,823
Adjusted operating margin	38.00%	40.00%	38.00%	39.00%

The net result for the period of deducting operating expenses from operating revenues.

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details