cm:Concept: us-gaap:PartnersCapitalAccountUnitsTreasuryUnitsReissued
| Partners' Capital Account, Units, Treasury Units Reissued |
| us-gaap:PartnersCapitalAccountUnitsTreasuryUnitsReissued |
| Units that were previously issued and then were repurchased and classified as treasury units. This element represents the number of these units which were reissued during the period. |
| cm:Concept |
| Shares (xbrli:sharesItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:PartnersCapitalAccountUnitsTreasuryUnitsReissued |