cm:Level2TextBlock: us-gaap:UnpaidPolicyClaimsAndClaimsAdjustmentExpensePolicy
| Unpaid Policy Claims and Claims Adjustment Expense, Policy [Policy Text Block] |
| us-gaap:UnpaidPolicyClaimsAndClaimsAdjustmentExpensePolicy |
| Disclosure of accounting policy for estimating the ultimate cost of settling insurance claims relating to insured events that have occurred on or before a particular date (ordinarily, the statement of financial position date). The estimated liability includes the amount of money that will be required for future payments of (a) claims that have been reported to the insurer, (b) claims related to insured events that have occurred but that have not been reported to the insurer as of the date the liability is estimated, and (c) claim adjustment expenses. Claims adjustment expenses include costs incurred in the claim settlement process such as legal fees; outside adjuster fees; and costs to record, process, and adjust claims. |
| cm:Level2TextBlock |
| Text Block (HTML) (nonnum:textBlockItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:UnpaidPolicyClaimsAndClaimsAdjustmentExpensePolicy |