cm:Concept: us-gaap:InvestmentCompanyDistributionToShareholdersPerShare
| Investment Company, Distribution to Shareholders, Per Share |
| us-gaap:InvestmentCompanyDistributionToShareholdersPerShare |
| Per share or unit amount of distribution to shareholders. Includes, but is not limited to, dividend and capital gain. Excludes distribution for tax return of capital. |
| cm:Concept |
| Share (num:perShareItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:InvestmentCompanyDistributionToShareholdersPerShare |