| Standard label: | Policyholder Contract Deposit |
| Name: | us-gaap:PolicyholderContractDeposits |
| Documentation: | Amount of liability due to policyholder for deposit held under long-duration contract issued by insurance entity. |
| 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:PolicyholderContractDeposits |
| Label | Role | Language |
| Policyholder Contract Deposit | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 40 25 14 (a) | http://www.xbrl.org/2009/role/commonPracticeRef | 944 |