| Standard label: | Cash Surrender Value, Fair Value Disclosure |
| Name: | us-gaap:CashSurrenderValueFairValueDisclosure |
| Documentation: | Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI). |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:CashSurrenderValueFairValueDisclosure |
| Label | Role | Language |
| Cash Surrender Value, Fair Value Disclosure | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| Part Of Roll Up: |
| us-gaap:AssetsFairValueDisclosure |