cm:Concept: us-gaap:DebtDefaultLongtermDebtDescriptionOfNoticeOfDefault
| Debt Instrument, Debt Default, Description of Notice of Default |
| us-gaap:DebtDefaultLongtermDebtDescriptionOfNoticeOfDefault |
| Description of the facts pertaining to a notice received from a lender that an event of default has occurred with respect to the long-term debt instrument or borrowing, and a description of the expected financial consequences of receiving such notice, including the effects of a demand for immediate repayment of all amounts due, and the classification of the debt on the balance sheet. |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:DebtDefaultLongtermDebtDescriptionOfNoticeOfDefault |