Unaudited Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 333,055	$ 219,646	$ 871,630	$ 826,879
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(12,232)	(23,378)	19,297	(63,989)
Changes in unrealized gains (losses) on available-for-sale securities, net of tax of $0 for periods presented	(212)	(1)	1,326	(1,674)
Cash flow hedges:
Deferred gains (losses), net of tax $(2,147) and $(14,995) for the three and nine months ended July 31, 2023, respectively, and of $6,780 and $16,191 for each of the same periods in fiscal 2022, respectively.	5,907	(19,051)	43,489	(41,769)
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(2,111) and $(8,707), for the three and nine months ended July 31, 2023, and of $(28) and $(499) for each of the same periods in fiscal 2022, respectively.	5,250	36	22,881	1,543
Other comprehensive income (loss), net of tax effects	(1,287)	(42,394)	86,993	(105,889)
Comprehensive income	331,768	177,252	958,623	720,990
Less: net income (loss) attributed to non-controlling interest and redeemable non-controlling interest	(3,197)	(2,980)	(9,068)	(4,215)
Comprehensive income attributed to Synopsys	$ 334,965	$ 180,232	$ 967,691	$ 725,205