| Standard label: | Liability for Future Policy Benefit, before Reinsurance |
| Name: | us-gaap:LiabilityForFuturePolicyBenefits |
| Documentation: | Amount, before effect of reinsurance, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract. |
| 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:LiabilityForFuturePolicyBenefits |
| Label | Role | Language |
| Liability for Future Policy Benefit, before Reinsurance | http://www.xbrl.org/2003/role/label | en-US |
| Liability for Future Policy Benefit, before Reinsurance, Ending Balance | http://www.xbrl.org/2003/role/periodEndLabel | en-US |
| Liability for Future Policy Benefit, before Reinsurance, Beginning Balance | http://www.xbrl.org/2003/role/periodStartLabel | en-US |
| Liability for Future Policy Benefit, before Reinsurance, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 210 S99 1 (SX 210.7-03(13)(a)(1)) | http://www.xbrl.org/2003/role/disclosureRef | 944 |
| FASB Accounting Standards Codification 944 40 55 29E | http://www.xbrl.org/2003/role/exampleRef | 944 |
| FASB Accounting Standards Codification 944 40 65 2 (g)(1) | http://www.xbrl.org/2003/role/disclosureRef | 944 |
| FASB Accounting Standards Codification 944 40 50 6 (a) | http://www.xbrl.org/2003/role/disclosureRef | 944 |
| FASB Accounting Standards Codification 944 40 50 6 (c) | http://www.xbrl.org/2003/role/disclosureRef | 944 |