cm:Concept: us-gaap:IndefiniteLivedIntangibleAssetsPeriodIncreaseDecrease
Indefinite-lived Intangible Assets, Period Increase (Decrease) |
us-gaap:IndefiniteLivedIntangibleAssetsPeriodIncreaseDecrease |
Amount of increase (decrease) of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. |
cm:Concept |
Monetary (xbrli:monetaryItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:IndefiniteLivedIntangibleAssetsPeriodIncreaseDecrease |