| Standard label: | Separate Account, Liability, Cash Surrender Value, Amount |
| Name: | us-gaap:SeparateAccountLiabilityCashSurrenderValueAmount |
| Documentation: | Amount of separate account liability payable to policyholder upon surrender of contract before maturity. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:SeparateAccountLiabilityCashSurrenderValueAmount |
| Label | Role | Language |
| Separate Account, Liability, Cash Surrender Value, Amount | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 80 50 2 (b) | http://www.xbrl.org/2003/role/disclosureRef | 944 |
| FASB Accounting Standards Codification 944 80 55 18 | http://www.xbrl.org/2003/role/exampleRef | 944 |