Details for Selection
| Standard label: | Held-to-maturity Securities, Debt Maturities, Basis of Allocation |
| Name: | us-gaap:HeldToMaturitySecuritiesDebtMaturitiesBasisOfAllocation |
| Documentation: | This item represents disclosure of the basis (methodology and assumptions) for allocating securities which do not have a single contractual maturity date, such as mortgage-backed securities, over several maturity groupings. Such securities are categorized as held-to-maturity. |
| Commentary: | |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For period (duration) |
| Balance type: | |
| Object class: | [Concept] |