cm:Concept: us-gaap:ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentFairValue
Schedule of Fair Value of Separate Accounts by Major Category of Investment, Fair Value |
us-gaap:ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentFairValue |
Fair value amount of the specified investment category of assets maintained in separate accounts as of the balance sheet date. |
cm:Concept |
Monetary (xbrli:monetaryItemType) |
As Of (instant) |
Debit |
false |
us-gaap:ScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentFairValue |