Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 1,218,125	$ 978,436	$ 756,359
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(13,912)	(108,145)	9,415
Change in unrealized gains (losses) on available-for-sale securities, net of tax of $0 for periods presented	1,513	(2,353)	(246)
Cash flow hedges:
Deferred gains (losses), net of tax of $(8,940), $28,416, and $(1,736) for fiscal years 2023, 2022 and 2021, respectively	24,986	(79,069)	9,860
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(10,053), $(1,342), and $4,593 for fiscal years 2023, 2022 and 2021, respectively	25,276	4,894	(14,559)
Other comprehensive income (loss), net of tax effects	37,863	(184,673)	4,470
Comprehensive income	1,255,988	793,763	760,829
Less: Net income (loss) attributed to non-controlling interest and redeemable non-controlling interest	(11,763)	(6,158)	(1,157)
Comprehensive income attributed to Synopsys	$ 1,267,751	$ 799,921	$ 761,986