| Name | ConvertiblesAndBondsWithWarrantsAttachedMember |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | nonnum:domainItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Convertibles and Bonds with Warrants Attached [Member] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Bonds which are convertible into another security, usually common shares of the issuer and bonds with warrants attached. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:ConvertibleDebtSecuritiesMember | parent-child | http://fasb.org/us-gaap/role/disclosure/SECScheduleArticle12-15SummaryOfInvestments-OtherThanInvestmentsInRelatedParties | |
us-gaap:ConvertibleDebtSecuritiesMember | domain-member | http://fasb.org/us-gaap/role/disclosure/SECScheduleArticle12-15SummaryOfInvestments-OtherThanInvestmentsInRelatedPartiesSummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesTable |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:FixedMaturitiesMember | parent-child | http://fasb.org/us-gaap/role/disclosure/SECScheduleArticle12-15SummaryOfInvestments-OtherThanInvestmentsInRelatedParties | |
us-gaap:FixedMaturitiesMember | domain-member | http://fasb.org/us-gaap/role/disclosure/SECScheduleArticle12-15SummaryOfInvestments-OtherThanInvestmentsInRelatedPartiesSummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesTable |