| Document and Entity Information | Feb. 12, 2021 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001760173 |
| Document Type | 8-K |
| Document Period End Date | Feb. 12, 2021 |
| Entity Registrant Name | SURGALIGN HOLDINGS, INC. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-38832 |
| Entity Tax Identification Number | 83-2540607 |
| Entity Address, Address Line One | 520 Lake Cook Road |
| Entity Address, Address Line Two | Suite 315 |
| Entity Address, City or Town | Deerfield |
| Entity Address, State or Province | IL |
| Entity Address, Postal Zip Code | 60015 |
| City Area Code | (224) |
| Local Phone Number | 303-4651 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | common stock, $0.001 par value |
| Trading Symbol | SRGA |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
