Unaudited Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 219,646	$ 198,392	$ 826,879	$ 555,222
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(23,378)	(5,905)	(63,989)	8,857
Changes in unrealized gains (losses) on available-for-sale securities, net of tax of $0 for periods presented	(1)	15	(1,674)	15
Cash flow hedges:
Deferred gains (losses), net of tax $6,780 and $16,191, for the three and nine months ended July 31, 2022, respectively, and of $(909) and $(1,876) for each of the same periods in fiscal 2021, respectively.	(19,051)	3,664	(41,769)	8,971
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(28) and $(499), for the three and nine months ended July 31, 2022, respectively, and of $1,460 and $3,808 for each of the same periods in fiscal 2021, respectively.	36	(4,830)	1,543	(12,180)
Other comprehensive income (loss), net of tax effects	(42,394)	(7,056)	(105,889)	5,663
Comprehensive income	177,252	191,336	720,990	560,885
Less: net income (loss) attributed to non-controlling interest and redeemable non-controlling interest	(2,980)	(254)	(4,215)	(847)
Comprehensive income attributed to Synopsys	$ 180,232	$ 191,590	$ 725,205	$ 561,732