Unaudited Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 313,341	$ 162,028
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(613)	17,932
Changes in unrealized gains (losses) on available-for-sale securities, net of tax of $0 for periods presented	(500)	0
Cash flow hedges:
Deferred gains (losses), net of tax $230 and $(1,405), respectively.	(1,585)	4,093
Reclassification adjustment on deferred (gains) losses included in net income, net of tax of $(302) and $885, respectively.	845	(2,726)
Other comprehensive income (loss), net of tax effects	(1,853)	19,299
Comprehensive income	311,488	181,327
Less: net income (loss) attributed to non-controlling interest	(346)	(317)
Comprehensive income attributed to Synopsys	$ 311,834	$ 181,644