Details for Selection
| Standard label: | Schedule of Auction Market Preferred Securities by Stock Series [Table Text Block] |
| Name: | us-gaap:ScheduleOfAuctionMarketPreferredSecuritiesByStockSeriesTextBlock |
| Documentation: | Tabular disclosure of information pertaining to auction market preferred securities, including liquidation preference, liquidation value, par value, rate setting interval, redemption requirements, dividend distributions, roll forward of shares outstanding, shares authorized, aggregate value of auction market preferred securities, variable interest rate earned, and other information necessary to a fair presentation. If redeemable, the auction market preferred securities are redeemable solely at the option of the issuer. |
| Commentary: | |
| Data type: | Text Block (HTML) (nonnum:textBlockItemType) |
| Period type: | For period (duration) |
| Balance type: | |
| Object class: | [Text Block] |