cm:Concept: us-gaap:InvestmentCompanyExpenseLimitationAgreementDescription
| Investment Company, Expense Limitation Agreement, Description |
| us-gaap:InvestmentCompanyExpenseLimitationAgreementDescription |
| Description of expense limitation agreement. Includes, but is not limited to, term of carryover expense and expense in excess of expense limitation. |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:InvestmentCompanyExpenseLimitationAgreementDescription |