| Standard label: | Prepaid Reinsurance Premiums |
| Name: | us-gaap:PrepaidReinsurancePremiums |
| Documentation: | The unexpired portion of premiums ceded on policies in force as of the balance sheet date. |
| 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:PrepaidReinsurancePremiums |
| Label | Role | Language |
| Prepaid Reinsurance Premiums | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 340 25 1 | http://www.xbrl.org/2003/role/disclosureRef | 944 |
| FASB Accounting Standards Codification 944 825 50 1B (b) | http://www.xbrl.org/2003/role/disclosureRef | 944 |