cm:Concept: us-gaap:IncomeLossFromContinuingOperationsPerOutstandingGeneralPartnershipUnitNetOfTax
       
          
          | Income (Loss) from Continuing Operations, Per Outstanding General Partnership Unit, Net of Tax | 
       
       
          
          | us-gaap:IncomeLossFromContinuingOperationsPerOutstandingGeneralPartnershipUnitNetOfTax | 
       
       
          
          | Per unit of ownership amount after tax of income (loss) from continuing operations available to general partnership (GP) unit-holder in a publicly trade limited partnership (LP) or master limited partnership (MLP). | 
       
       
          
          | cm:Concept | 
       
       
          
          | Share (num:perShareItemType) | 
       
       
          
          | For Period (duration) | 
       
       
          
          | (no balance type) | 
       
       
          
          | false | 
       
       
          
          | us-gaap:IncomeLossFromContinuingOperationsPerOutstandingGeneralPartnershipUnitNetOfTax |