| Standard label: | Deferred Sale Inducement Cost, Experience Adjustment |
| Name: | us-gaap:DeferredSaleInducementCostExperienceAdjustment |
| Documentation: | Amount of expense for writeoff from unexpected insurance contract termination, charged against previously capitalized deferred sale inducement cost. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DeferredSaleInducementCostExperienceAdjustment |
| Label | Role | Language |
| Deferred Sale Inducement Cost, Experience Adjustment | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 30 50 2B (a) | http://www.xbrl.org/2009/role/commonPracticeRef | 944 |
| FASB Accounting Standards Codification 944 40 65 2 (g)(1) | http://www.xbrl.org/2009/role/commonPracticeRef | 944 |