| Standard label: | Demutualization by Insurance Entity, Securities Issued, Price Per Share or Unit |
| Name: | us-gaap:DemutualizationByInsuranceEntitySecuritiesIssuedPricePerShareOrUnit |
| Documentation: | The share or unit price of securities issued in an insurance entity stock offering in connection with its conversion from a mutual form of ownership to a stock entity. |
| Object type: | cm:Concept |
| Data type: | Share (num:perShareItemType) |
| Period type: | As Of (instant) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DemutualizationByInsuranceEntitySecuritiesIssuedPricePerShareOrUnit |
| Label | Role | Language |
| Demutualization by Insurance Entity, Securities Issued, Price Per Share or Unit | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 805 50 2 (a) | http://fasb.org/us-gaap/role/ref/legacyRef | 944 |