Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Aug. 05, 2020
commission file number [Line Items]
Title of 12(b) Security	Common units representing limited partner interests
Trading Symbol	CLMT
Security Exchange Name	NASDAQ
Entity Registrant Name	Calumet Specialty Products Partners, L.P.
Entity Address, Address Line One	2780 Waterfront Parkway East Drive
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	Indianapolis
Entity Address, State or Province	IN
Entity Address, Postal Zip Code	46214
City Area Code	317
Local Phone Number	328-5660
Entity Information, Former Legal or Registered Name	None
Entity Incorporation, State or Country Code	DE
Entity Central Index Key	0001340122
Entity File Number	000-51734
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Jun. 30, 2020
Entity Tax Identification Number	35-1811116
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		78,006,842