cm:Axis: us-gaap:BusinessCombinationSeparatelyRecognizedTransactionsAxis
Business Combination, Separately Recognized Transactions [Axis] |
us-gaap:BusinessCombinationSeparatelyRecognizedTransactionsAxis |
Disclosures related to transactions that are recognized separately from the acquisition of assets and assumptions of liabilities in the business combination by type of transaction. |
cm:Axis |
Text/String (xbrli:stringItemType) |
For Period (duration) |
(no balance type) |
true |
us-gaap:BusinessCombinationSeparatelyRecognizedTransactionsAxis |