cm:Concept: us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationDescriptionAndTerms
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Description and Terms |
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationDescriptionAndTerms |
Description of modification of award under share-based payment arrangement. Includes, but is not limited to, terms for expiration date, vesting rights and exercise price. |
cm:Concept |
Text/String (xbrli:stringItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationDescriptionAndTerms |