cm:Concept: us-gaap:BankruptcyProceedingsDescriptionOfProceedings
| Bankruptcy Proceedings, Description of Proceedings |
| us-gaap:BankruptcyProceedingsDescriptionOfProceedings |
| Description of the bankruptcy proceedings, including the process for emergence from bankruptcy. Does not include a description of management's plans to improve operations to enable the entity to emerge from bankruptcy, or a description of planned facility closings, business exit activities and headcount reduction plans. |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:BankruptcyProceedingsDescriptionOfProceedings |