cm:Concept: us-gaap:DebtInstrumentConvertibleTermsOfConversionFeature
| Debt Instrument, Convertible, Terms of Conversion Feature |
| us-gaap:DebtInstrumentConvertibleTermsOfConversionFeature |
| Description of the conversion terms of a debt instrument which may include the conversion ratio (including all potential conversion ratios if contingently adjustable), type of debt or equity security into which the debt is convertible, the dollars of debt or the number of shares into which the instrument is convertible (or potentially convertible into), the conversion period, any contingencies associated with the conversion terms, and the existence and amount of a beneficial conversion feature. |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:DebtInstrumentConvertibleTermsOfConversionFeature |