cm:Concept: us-gaap:DebtSecuritiesAvailableForSaleChangeInValuationTechnique
Debt Securities, Available-for-sale, Change in Valuation Technique [true false] |
us-gaap:DebtSecuritiesAvailableForSaleChangeInValuationTechnique |
Indicates (true false) whether valuation technique or approach changed for measuring investment in debt security at fair value with change in fair value recognized in other comprehensive income (available-for-sale). |
cm:Concept |
Yes/No (xbrli:booleanItemType) |
As Of (instant) |
(no balance type) |
false |
us-gaap:DebtSecuritiesAvailableForSaleChangeInValuationTechnique |