| Standard label: | Deferred Policy Acquisition Cost |
| Name: | us-gaap:DeferredPolicyAcquisitionCosts |
| Documentation: | Amount of deferred policy acquisition cost capitalized on contract remaining in force. |
| 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:DeferredPolicyAcquisitionCosts |
| Label | Role | Language |
| Deferred Policy Acquisition Cost | http://www.xbrl.org/2003/role/label | en-US |
| Deferred Policy Acquisition Cost, Ending Balance | http://www.xbrl.org/2003/role/periodEndLabel | en-US |
| Deferred Policy Acquisition Cost, Beginning Balance | http://www.xbrl.org/2003/role/periodStartLabel | en-US |
| Deferred Policy Acquisition Cost, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 210 S99 1 (SX 210.7-03(a)(7)) | http://www.xbrl.org/2003/role/disclosureRef | 944 |
| FASB Accounting Standards Codification 944 30 50 2B (a) | http://www.xbrl.org/2003/role/disclosureRef | 944 |
| FASB Accounting Standards Codification 944 30 50 2B (b) | http://www.xbrl.org/2003/role/disclosureRef | 944 |
| FASB Accounting Standards Codification 944 30 55 2 | http://www.xbrl.org/2003/role/exampleRef | 944 |
| FASB Accounting Standards Codification 944 40 65 2 (g)(1) | http://www.xbrl.org/2003/role/disclosureRef | 944 |
| FASB Accounting Standards Codification 944 825 45 1 | http://www.xbrl.org/2003/role/disclosureRef | 944 |