Details for Selection
| Standard label: | Auction Market Preferred Securities, Stock Series, Rate Setting Interval |
| Name: | us-gaap:AuctionMarketPreferredSecuritiesStockSeriesRateSettingInterval |
| Documentation: | The number of days in a rate setting interval for auction market preferred securities. |
| Commentary: | |
| Data type: | Integer (xbrli:integerItemType) |
| Period type: | For period (duration) |
| Balance type: | |
| Object class: | [Concept] |