CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Revenue:
Total revenue	$ 7,054,178	$ 6,127,436	$ 5,318,014
Cost of revenue:
Amortization of acquired intangible assets	311,858	107,996	45,281
Total cost of revenue	1,623,549	1,245,289	1,030,843
Gross margin	5,430,629	4,882,147	4,287,171
Operating expenses:
Research and development	2,479,338	2,082,360	1,849,935
Sales and marketing	1,074,191	859,342	724,934
General and administrative	769,648	568,496	376,677
Amortization of acquired intangible assets	192,525	16,238	9,295
Restructuring charges	0	0	53,091
Total operating expenses	4,515,702	3,526,436	3,013,932
Operating income	914,927	1,355,711	1,273,239
Interest expense	(446,729)	(36,829)	(2,703)
Other income (expense), net	924,944	194,976	34,934
Income before income taxes	1,393,142	1,513,858	1,305,470
Provision for income taxes	55,991	99,718	90,188
Net income from continuing operations	1,337,151	1,414,140	1,215,282
Income (loss) from discontinued operations, net of income taxes	(3,900)	821,670	2,843
Net income	1,333,251	2,235,810	1,218,125
Less: Net income (loss) attributed to non-controlling interest and redeemable non-controlling interest	1,031	(27,570)	(11,763)
Net income attributed to Synopsys	1,332,220	2,263,380	1,229,888
Net income (loss) attributed to Synopsys:
Continuing operations	1,336,120	1,441,710	1,227,045
Discontinued operations	(3,900)	821,670	2,843
Net income attributed to Synopsys	$ 1,332,220	$ 2,263,380	$ 1,229,888
Net income (loss) per share attributed to Synopsys - basic:
Continuing operations (in USD per share)	$ 8.15	$ 9.41	$ 8.06
Discontinued operations (in USD per share)	(0.02)	5.37	0.02
Basic net income per share (in USD per share)	8.13	14.78	8.08
Net income (loss) per share attributed to Synopsys - diluted:
Continuing operations (in USD per share)	8.07	9.25	7.91
Discontinued operations (in USD per share)	(0.03)	5.26	0.01
Diluted net income per share (in USD per share)	$ 8.04	$ 14.51	$ 7.92
Shares used in computing per share amounts:
Basic ( in shares)	163,947	153,138	152,146
Diluted (in shares)	165,656	155,944	155,195
Products
Revenue:
Total revenue	$ 5,500,211	$ 5,026,521	$ 4,416,381
Cost of revenue:
Cost of revenue	867,165	770,238	697,686
Time-based products
Revenue:
Total revenue	3,489,609	3,224,299	3,016,256
Upfront products
Revenue:
Total revenue	2,010,602	1,802,222	1,400,125
Maintenance and service
Revenue:
Total revenue	1,553,967	1,100,915	901,633
Cost of revenue:
Cost of revenue	$ 444,526	$ 367,055	$ 287,876