cm:Concept: us-gaap:NameOfPromptCorrectiveActionCategory
| Name of Prompt Corrective Action Category |
| us-gaap:NameOfPromptCorrectiveActionCategory |
| As of each balance sheet date presented, the prompt corrective action category in which the depository or lending institution was classified as of its most recent notification. And, as of the most recent balance sheet date, whether management believes any conditions or events since notification have changed the institution's category. |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:NameOfPromptCorrectiveActionCategory |