v3.26.1
Document and Entity Information
Aug. 07, 2026
Cover [Abstract]  
Document Type 8-K
Document Period End Date Aug. 07, 2026
Entity Registrant Name Calumet, Inc. /DE
Entity Incorporation, State or Country Code DE
Entity File Number 001-42172
Entity Tax Identification Number 36-5098520
Entity Address, Address Line One 1060 N Capitol Ave
Entity Address, Address 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
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 $0.01 per share
Trading Symbol CLMT
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Amendment Flag false
Entity Central Index Key 0002013745