| Standard label: | Assets Held by Insurance Regulators |
| Name: | us-gaap:AssetsHeldByInsuranceRegulators |
| Documentation: | Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements. |
| 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:AssetsHeldByInsuranceRegulators |
| Label | Role | Language |
| Assets Held by Insurance Regulators | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 825 50 1A | http://www.xbrl.org/2003/role/disclosureRef | 944 |