| Standard label: | Repayments of Annuities and Investment Certificates |
| Name: | us-gaap:RepaymentsOfAnnuitiesAndInvestmentCertificates |
| Documentation: | The cash outflow for an insurance contract under which the policy holder make a lump sum payment or a series of payments in exchange for periodic payments to the policyholder beginning immediately or at some future date. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:RepaymentsOfAnnuitiesAndInvestmentCertificates |
| Label | Role | Language |
| Repayments of Annuities and Investment Certificates | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 230 10 45 15 (b) | http://fasb.org/us-gaap/role/ref/legacyRef | 230 |
| Part Of Roll Up: |
| us-gaap:NetChangeAnnuitiesAndInvestmentCertificates |