cm:Concept: us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleDescriptionOfPriorperiodInformationRetrospectivelyAdjusted
New Accounting Pronouncement or Change in Accounting Principle, Description of Prior-period Information Retrospectively Adjusted |
us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleDescriptionOfPriorperiodInformationRetrospectivelyAdjusted |
Description of the prior-period information that has been retrospectively adjusted when a new accounting pronouncement or a change in accounting principle is adopted. |
cm:Concept |
Text/String (xbrli:stringItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleDescriptionOfPriorperiodInformationRetrospectivelyAdjusted |