cm:Level2TextBlock: us-gaap:MalpracticeLossContingencyPolicy
| Malpractice Loss Contingency, Policy [Policy Text Block] |
| us-gaap:MalpracticeLossContingencyPolicy |
| Disclosure of the accounting policy for malpractice loss contingencies accrual (general and professional liability) which may include the method for calculating incurred but not reported (IBNR) claims, the use of actuarial and individual case-based assumptions, whether the accrual has been discounted, the types of costs included in the accrual (for example, legal costs) and other significant estimates used to determine the accrued liability. |
| cm:Level2TextBlock |
| Text Block (HTML) (nonnum:textBlockItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:MalpracticeLossContingencyPolicy |