cm:Concept: us-gaap:ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss
Impaired Assets to be Disposed of by Method Other than Sale, Amount of Impairment Loss |
us-gaap:ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss |
Loss recognized as a result of the initial and subsequent write-down of a long-lived asset's carrying amount to fair value. |
cm:Concept |
Monetary (xbrli:monetaryItemType) |
For Period (duration) |
Debit |
false |
us-gaap:ImpairedAssetsToBeDisposedOfByMethodOtherThanSaleAmountOfImpairmentLoss |