| Standard label: | Life Settlement Contracts, Investment Method, Number of Contracts |
| Name: | us-gaap:LifeSettlementContractsInvestmentMethodNumberOfContracts |
| Documentation: | Number of life settlement contracts accounted for under the investment method. |
| Object type: | cm:Concept |
| Data type: | Integer (xbrli:integerItemType) |
| Period type: | As Of (instant) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:LifeSettlementContractsInvestmentMethodNumberOfContracts |
| Label | Role | Language |
| Life Settlement Contracts, Investment Method, Number of Contracts | http://www.xbrl.org/2003/role/label | en-US |
| Life Settlement Contracts, Investment Method, Number of Contracts, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 325 30 50 4 (a) | http://fasb.org/us-gaap/role/ref/legacyRef | 325 |