| Cover | Jun. 14, 2021 |
| Cover [Abstract] | |
| Entity Registrant Name | SailPoint Technologies Holdings, Inc. |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Central Index Key | 0001627857 |
| Document Period End Date | Jun. 14, 2021 |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-38297 |
| Entity Tax Identification Number | 47-1628077 |
| Entity Address, Address Line One | 11120 Four Points Drive |
| Entity Address, Address Line Two | Suite 100 |
| Entity Address, City or Town | Austin |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 78726 |
| City Area Code | (512) |
| Local Phone Number | 346-2000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $0.0001 per share |
| Trading Symbol | SAIL |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
