cm:Concept: us-gaap:DistributionPaymentMadeToLimitedPartnerFormsOtherThanCashOrStockDescription
| Distribution Payment Made to Limited Partner, Forms Other than Cash or Stock, Description |
| us-gaap:DistributionPaymentMadeToLimitedPartnerFormsOtherThanCashOrStockDescription |
| Description of nonmonetary payment to limited partner of limited partnership (LP), for example, promissory notes or investments in kind. |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:DistributionPaymentMadeToLimitedPartnerFormsOtherThanCashOrStockDescription |