cm:Level1TextBlock: us-gaap:MalpracticeLossContingencyDisclosureTextBlock
| Malpractice Loss Contingency Disclosure [Text Block] |
| us-gaap:MalpracticeLossContingencyDisclosureTextBlock |
| The entire disclosure for the accrual for malpractice loss contingencies (general and professional liability) which may include the policy used for accruing the loss contingency, the nature and amount of any accrual, and any significant estimate used to determine the accrual. |
| cm:Level1TextBlock |
| Text Block (HTML) (nonnum:textBlockItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:MalpracticeLossContingencyDisclosureTextBlock |