Unaudited Condensed Consolidated Statements of Stockholders' Equity Statement - USD ($) shares in Thousands, $ in Thousands	Total		Common Stock	Capital in Excess of Par Value	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Total  Synopsys Stockholders’ Equity	Non-controlling Interest
Balance (in shares) at Oct. 31, 2021			153,062
Beginning balance at Oct. 31, 2021	$ 5,298,943		$ 1,531	$ 1,576,363	$ 4,549,713	$ (782,866)	$ (49,604)	$ 5,295,137	$ 3,806
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	313,341				313,687			313,687	(346)
Other comprehensive income (loss), net of tax effects	$ (1,853)						(1,853)	(1,853)
Purchases of treasury stock (in shares)	(701)	[1],[2]	(701)
Purchases of treasury stock	$ (245,000)	[1],[2]	$ (7)	7		(245,000)		(245,000)
Equity forward contract, net	$ (5,000)			(5,000)				(5,000)
Common stock issued, net of shares withheld for employee taxes (in shares)	895	[1],[2]	895
Common stock issued, net of shares withheld for employee taxes	$ (65,969)		$ 9	(236,915)		170,937		(65,969)
Stock-based compensation	95,771			95,771				95,771
Balance (in shares) at Jan. 31, 2022			153,256
Ending balance at Jan. 31, 2022	5,390,233		$ 1,533	1,430,226	4,863,400	(856,929)	(51,457)	5,386,773	3,460
Balance (in shares) at Oct. 31, 2022			152,375
Beginning balance at Oct. 31, 2022	5,520,526		$ 1,524	1,487,126	5,534,307	(1,272,955)	(234,277)	5,515,725	4,801
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	271,242				271,536			271,536	(294)
Other comprehensive income (loss), net of tax effects	$ 91,944						91,944	91,944
Purchases of treasury stock (in shares)	(806)	[3]	(806)
Purchases of treasury stock	$ (260,724)	[3]	$ (8)	8		(260,724)		(260,724)
Equity forward contract, net	$ (45,000)			(45,000)				(45,000)
Common stock issued, net of shares withheld for employee taxes (in shares)	811	[3]	811
Common stock issued, net of shares withheld for employee taxes	$ (69,513)		$ 8	(282,020)		212,499		(69,513)
Stock-based compensation	134,227			132,786				132,786	1,441
Balance (in shares) at Jan. 31, 2023			152,380
Ending balance at Jan. 31, 2023	$ 5,642,702		$ 1,524	$ 1,292,900	$ 5,805,843	$ (1,321,180)	$ (142,333)	$ 5,636,754	$ 5,948

[1] Excluded the 161,215 shares and $40.0 million equity forward contract from the December 2021 ASR settled in February 2022.

[2] Included the 107,701 shares and $35.0 million equity forward contract from the August 2021 ASR settled in November 2021.

[3] Excluded the 107,020 shares and $45.0 million equity forward contract from the December 2022 ASR settled in February 2023.