| Cover Page | Nov. 30, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Nov. 30, 2021 |
| Entity Registrant Name | Informatica Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-40936 |
| Entity Tax Identification Number | 61-1999534 |
| Entity Address, Address Line One | 2100 Seaport Boulevard |
| Entity Address, City or Town | Redwood City |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94063 |
| City Area Code | 650 |
| Local Phone Number | 385-5000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A common stock, par value $0.01 per share |
| Trading Symbol | INFA |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001868778 |
| Document Fiscal Year Focus | 2021 |
| Document Fiscal Period Focus | Q3 |
| Amendment Flag | false |
