Unaudited Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 269,948	$ 293,892	$ 538,575	$ 607,233
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(8,788)	(39,999)	31,529	(40,612)
Changes in unrealized gains (losses) on available-for-sale securities, net of tax of $0 for periods presented	380	(1,173)	1,538	(1,673)
Cash flow hedges:
Deferred gains (losses), net of tax $1,959 and $(12,848) for the three and six months ended April 30, 2023, respectively, and of $9,181 and $9,411 for each of the same periods in fiscal 2022, respectively.	(4,530)	(21,132)	37,582	(22,717)
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(3,497) and $(6,596), for each of the three and six months ended April 30, 2023, and of $(170) and $(472) for each of the same periods in fiscal 2022, respectively.	9,274	662	17,631	1,507
Other comprehensive income (loss), net of tax effects	(3,664)	(61,642)	88,280	(63,495)
Comprehensive income	266,284	232,250	626,855	543,738
Less: net income (loss) attributed to non-controlling interest and redeemable non-controlling interest	(2,962)	(889)	(5,871)	(1,235)
Comprehensive income attributed to Synopsys	$ 269,246	$ 233,139	$ 632,726	$ 544,973