cm:Concept: us-gaap:ConvertibleDebtCurrent
| Convertible Debt, Current |
| us-gaap:ConvertibleDebtCurrent |
| The portion of the carrying value of long-term convertible debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle if longer. Convertible debt is a financial instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| As Of (instant) |
| Credit |
| false |
| us-gaap:ConvertibleDebtCurrent |