| Document and Entity Information | Apr. 27, 2023 |
| Cover [Abstract] | |
| Entity Registrant Name | GLOBUS MEDICAL INC |
| Amendment Flag | false |
| Entity Central Index Key | 0001237831 |
| Document Type | 8-K |
| Document Period End Date | Apr. 27, 2023 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-35621 |
| Entity Tax Identification Number | 04-3744954 |
| Entity Address, Address Line One | 2560 GENERAL ARMISTEAD AVENUE |
| Entity Address, City or Town | AUDUBON |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 19403-5214 |
| City Area Code | (610) |
| Local Phone Number | 930-1800 |
| Written Communications | true |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Class A Common Stock, par value $0.001 per share |
| Trading Symbol | GMED |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
