CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2025	Apr. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 345,110	$ 289,089	$ 642,521	$ 735,296
Other comprehensive income (loss):
Change in foreign currency translation adjustment	44,764	(18,677)	16,127	(387)
Change in unrealized gains (losses) on available-for-sale securities, net of tax of $0 for periods presented	52	(133)	9	879
Cash flow hedges:
Deferred gains (losses), net of tax benefit of $10,507 and $22,002 for the three and six months ended April 30, 2025, respectively and of $3,022 and $19 for each of the same periods in fiscal 2024, respectively	(45,708)	(7,135)	(82,155)	3,475
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(783) and $(2,186) for the three and six months ended April 30, 2025, respectively, and of $(741) and $(2,431), for each of the same periods in fiscal 2024, respectively	2,675	1,156	6,263	4,434
Other comprehensive income (loss), net of tax effects	1,783	(24,789)	(59,756)	8,401
Comprehensive income	346,893	264,300	582,765	743,697
Less: Net income (loss) attributed to non-controlling interest and redeemable non-controlling interest	(222)	(3,018)	1,506	(5,923)
Comprehensive income attributed to Synopsys	$ 347,115	$ 267,318	$ 581,259	$ 749,620