Unaudited Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Revenue:
Total revenue	$ 1,024,323	$ 861,327	$ 1,994,644	$ 1,695,708
Cost of revenue:
Amortization of intangible assets	11,408	13,845	23,294	27,014
Total cost of revenue	213,986	184,265	421,985	377,133
Gross margin	810,337	677,062	1,572,659	1,318,575
Operating expenses:
Research and development	362,345	302,571	719,813	616,854
Sales and marketing	172,754	146,200	343,382	299,055
General and administrative	72,694	62,474	150,182	131,218
Amortization of intangible assets	8,313	10,250	16,703	19,614
Restructuring charges	0	29,672	0	38,423
Total operating expenses	616,106	551,167	1,230,080	1,105,164
Operating income	194,231	125,895	342,579	213,411
Other income (expense), net	21,764	(15,729)	50,520	(3,672)
Income before income taxes	215,995	110,166	393,099	209,739
Provision (benefit) for income taxes	21,193	246	36,269	(4,242)
Net income	194,802	109,920	356,830	213,981
Net income (loss) attributed to non-controlling interest	(276)	0	(593)	0
Net income attributed to Synopsys	$ 195,078	$ 109,920	$ 357,423	$ 213,981
Net income per share attributed to Synopsys:
Basic (in USD per share)	$ 1.28	$ 0.73	$ 2.34	$ 1.42
Diluted (in USD per share)	$ 1.24	$ 0.71	$ 2.27	$ 1.39
Shares used in computing per share amounts:
Basic (shares)	152,725	150,597	152,612	150,421
Diluted (shares)	157,077	154,379	157,226	154,471
Time-based products
Revenue:
Total revenue	$ 648,794	$ 590,097	$ 1,280,084	$ 1,146,536
Cost of revenue:
Cost of revenue	134,738	108,207	262,085	225,991
Upfront products
Revenue:
Total revenue	209,116	129,765	383,497	280,486
Maintenance and service
Revenue:
Total revenue	166,413	141,465	331,063	268,686
Cost of revenue:
Cost of revenue	$ 67,840	$ 62,213	$ 136,606	$ 124,128