cm:Member: us-gaap:CollectibilityOfReceivablesMember
| Collectibility of Receivables [Member] |
| us-gaap:CollectibilityOfReceivablesMember |
| The assets of an enterprise may include receivables that arose from credit sales, loans, or other transactions. The conditions under which receivables exist usually involve some degree of uncertainty about their collectability, in which case a contingency exist. |
| cm:Member |
| [Member] (nonnum:domainItemType) |
| For Period (duration) |
| (no balance type) |
| true |
| us-gaap:CollectibilityOfReceivablesMember |