cm:Member: us-gaap:ShareBasedPaymentArrangementNonemployeeMember
| Share-based Payment Arrangement, Nonemployee [Member] |
| us-gaap:ShareBasedPaymentArrangementNonemployeeMember |
| Recipient, of award granted under share-based payment arrangement, over whom grantor does not exercise nor has right to exercise sufficient control to establish employer-employee relationship based on law of pertinent jurisdiction. Excludes nonemployee director treated as employee when acting as member of board of directors, if elected by grantor's shareholders or appointed to board position to be filled by shareholder election when existing term expires. |
| cm:Member |
| [Member] (nonnum:domainItemType) |
| For Period (duration) |
| (no balance type) |
| true |
| us-gaap:ShareBasedPaymentArrangementNonemployeeMember |