| Document and Entity Information | Apr. 12, 2023 |
| Document And Entity Information [Line Items] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Document Period End Date | Apr. 12, 2023 |
| Entity Registrant Name | SYNOPSYS, INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 000-19807 |
| Entity Tax Identification Number | 56-1546236 |
| Entity Address, Address Line One | 675 Almanor Ave. |
| Entity Address, City or Town | Sunnyvale, California |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94085 |
| City Area Code | 650 |
| Local Phone Number | 584-5000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock ($0.01 par value) |
| Trading Symbol | SNPS |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Amendment Description | This current report on Form 8-K/A (this “Amendment”) amends the current report on Form 8-K filed by Synopsys, Inc. (the “Company”) with the Securities and Exchange Commission on April 14, 2023 (the “Original 8-K”). The purpose of this Amendment is to update the disclosure under “Item 5.07 Submission of Matters to a Vote of Security Holders” of the Original 8-K to provide information regarding the Company’s determination on the frequency of future stockholder advisory votes on the compensation of the Company’s named executive officers. No other changes are being made to the Original 8-K. |
| Entity Central Index Key | 0000883241 |
| Former Address [Member] | |
| Document And Entity Information [Line Items] | |
| Entity Address, Address Line One | 690 East Middlefield Road |
| Entity Address, City or Town | Mountain View |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94043 |
