Details for Selection
| Standard label: | Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions |
| Name: | us-gaap:HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions |
| Documentation: | Disclosure regarding factors used to determine that the impairment of securities categorized as held-to-maturity where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the held-to-maturity investments determined to be temporarily impaired. |
| Commentary: | |
| Data type: | Decimal (xbrli:decimalItemType) |
| Period type: | As of (instant) |
| Balance type: | |
| Object class: | [Concept] |