Details for Selection
| Standard label: | Marketable Securities, Fixed Maturities |
| Name: | us-gaap:MarketableSecuritiesFixedMaturities |
| Documentation: | For an unclassified balance sheet, this item represents investments in debt securities having predetermined or determinable maturity dates. |
| Commentary: | |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As of (instant) |
| Balance type: | Debit |
| Object class: | [Concept] |