| Document and Entity Information | Feb. 28, 2025 |
| Document and Entity Information [Abstract] | |
| Entity Central Index Key | 0002013745 |
| Amendment Flag | false |
| Title of 12(b) Security | Common Stock, par value $0.01 per share |
| Entity Incorporation, State or Country Code | DE |
| Document Type | 8-K |
| Document Period End Date | Feb. 28, 2025 |
| Entity Registrant Name | Calumet, Inc. /DE |
| Entity Address, Address Line One | 1060 N Capitol Ave |
| Entity Address, Adress Line Two | Suite 6-401 |
| Entity Address, City or Town | Indianapolis |
| Entity Address State Or Province | IN |
| Entity Address, Postal Zip Code | 46204 |
| City Area Code | 317 |
| Local Phone Number | 328-5660 |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Written Communications | false |
| Entity File Number | 001-42172 |
| Entity Tax Identification Number | 36-5098520 |
| Trading Symbol | CLMT |
| Security Exchange Name | NASDAQ |
