cm:Concept: us-gaap:ReorganizationValueCashInExcessOfNormalOperatingNeeds
| Reorganization Value, Cash in Excess of Normal Operating Needs |
| us-gaap:ReorganizationValueCashInExcessOfNormalOperatingNeeds |
| Amount of reorganization value related to cash in excess of normal operating requirements generated by operations. Reorganization value is the amount attributed to the reconstituted entity, as well as the expected net realizable value of those assets that will be disposed before reconstitution occurs. |
| cm:Concept |
| Monetary (xbrli:monetaryItemType) |
| As Of (instant) |
| Debit |
| false |
| us-gaap:ReorganizationValueCashInExcessOfNormalOperatingNeeds |