CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 404,894	$ 333,055	$ 1,140,190	$ 871,630
Other comprehensive income (loss):
Change in foreign currency translation adjustment	4,913	(12,232)	4,526	19,297
Change in unrealized gains (losses) on available-for-sale securities, net of tax of $0 for periods presented	885	(212)	1,764	1,326
Cash flow hedges:
Deferred gains (losses), net of tax $(1,989) and $(1,970) for the three and nine months ended July 31, 2024, respectively, and of $(2,147) and $(14,995) for each of the same periods in fiscal 2023, respectively.	4,181	5,907	7,656	43,489
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $348 and $(2,083) for the three and nine months ended July 31, 2024, respectively, and of $(2,111) and $(8,707) for each of the same periods in fiscal 2023, respectively.	(2,078)	5,250	2,356	22,881
Other comprehensive income (loss), net of tax effects	7,901	(1,287)	16,302	86,993
Comprehensive income	412,795	331,768	1,156,492	958,623
Less: Net income (loss) attributed to non-controlling interest and redeemable non-controlling interest	(3,161)	(3,197)	(9,084)	(9,068)
Comprehensive income attributed to Synopsys	$ 415,956	$ 334,965	$ 1,165,576	$ 967,691