cm:Concept: us-gaap:DebtInstrumentRestrictiveCovenants
| Debt Instrument, Restrictive Covenants |
| us-gaap:DebtInstrumentRestrictiveCovenants |
| Description of covenants that limit or prohibit certain actions or activities without the lender's prior consent within a specified period of time or until certain specified targets are achieved for example, reduction of the debt or an increase in net worth to a specified amount). |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:DebtInstrumentRestrictiveCovenants |