CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 2,235,810	$ 1,218,125	$ 978,436
Other comprehensive income (loss):
Change in foreign currency translation adjustment	8,150	(13,912)	(108,145)
Change in unrealized gains (losses) on available-for-sale securities, net of tax of $0 for periods presented	1,460	1,513	(2,353)
Cash flow hedges:
Deferred gains (losses), net of tax of $(3,052), $(8,940), and $28,416 for fiscal years 2024, 2023 and 2022, respectively	9,625	24,986	(79,069)
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(446), $(10,053), and $(1,342) for fiscal years 2024, 2023 and 2022, respectively	(3,201)	25,276	4,894
Other comprehensive income (loss), net of tax effects	16,034	37,863	(184,673)
Comprehensive income	2,251,844	1,255,988	793,763
Less: Net income (loss) attributed to non-controlling interest and redeemable non-controlling interest	(27,570)	(11,763)	(6,158)
Comprehensive income attributed to Synopsys	$ 2,279,414	$ 1,267,751	$ 799,921