| Cover | Feb. 05, 2025 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Feb. 05, 2025 |
| Entity File Number | 001-32505 |
| Entity Registrant Name | TransMontaigne Partners LLC |
| Entity Central Index Key | 0001319229 |
| Entity Tax Identification Number | 34-2037221 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 1670 Broadway |
| Entity Address, Address Line Two | Suite 3100 |
| Entity Address, City or Town | Denver |
| Entity Address, State or Province | CO |
| Entity Address, Postal Zip Code | 80202 |
| City Area Code | 303 |
| Local Phone Number | 626-8200 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
