| Standard label: | Policyholder Dividends, Rate on Policy Earnings |
| Name: | us-gaap:PolicyholderDividendsRateOnPolicyEarnings |
| Documentation: | The percentage of earnings allocable to participating policyholders based on earnings of such policies for payment of dividends. |
| Object type: | cm:Concept |
| Data type: | Percent (num:percentItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PolicyholderDividendsRateOnPolicyEarnings |
| Label | Role | Language |
| Policyholder Dividends, Rate on Policy Earnings | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 210 S99 1 (SX 210.7-03(14)(b)) | http://www.xbrl.org/2009/role/commonPracticeRef | 944 |