cm:Concept: us-gaap:LimitedPartnersCumulativeNetIncome
| Limited Partners' Cumulative Earnings |
| us-gaap:LimitedPartnersCumulativeNetIncome |
| Aggregate cumulative earnings allocated to the limited partners based on the sharing of income or losses between general and limited partners as specified in the partnership agreement, excluding any priority income allocations resulting from incentive distributions or special earnings allocations. |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| As Of (instant) |
| Credit |
| false |
| us-gaap:LimitedPartnersCumulativeNetIncome |