Details for Selection
| Standard label: | Auction Market Preferred Securities, Shares Outstanding |
| Name: | us-gaap:AuctionMarketPreferredSecuritiesSharesOutstanding |
| Documentation: | These are the number of AMPS shares outstanding at the balance sheet date. |
| Commentary: | |
| Data type: | Shares (xbrli:sharesItemType) |
| Period type: | As of (instant) |
| Balance type: | |
| Object class: | [Concept] |