Segment Disclosure - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Segment Reporting Information [Line Items]
Total revenue	$ 1,270,255	$ 970,321
Adjusted operating income	347,036	148,348
Operating Segments
Segment Reporting Information [Line Items]
Adjusted operating income	$ 459,391	$ 286,820
Adjusted operating margin	36.00%	30.00%
Operating Segments | Semiconductor & System Design:
Segment Reporting Information [Line Items]
Total revenue	$ 1,162,695	$ 878,368
Adjusted operating income	$ 447,392	$ 278,876
Adjusted operating margin	38.00%	32.00%
Operating Segments | Software Integrity:
Segment Reporting Information [Line Items]
Total revenue	$ 107,560	$ 91,953
Adjusted operating income	$ 11,999	$ 7,944
Adjusted operating margin	11.00%	9.00%