| Name | AuctionMarketPreferredSecuritiesStockSeriesAxis |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrldt:dimensionItem |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Auction Market Preferred Securities, Stock Series [Axis] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Information by title of series or issue of auction market preferred securities. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 505 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 10 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 5 | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=109259400&loc=d3e21488-112644 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 505 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 10 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 11 | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=109259400&loc=d3e21564-112644 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 210 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 10 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | S99 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 1 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Subparagraph | (SX 210.5-02(28)) | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 505 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 10 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 4 | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 505 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 10 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 3 | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:AuctionMarketPreferredSecuritiesStockSeriesTitleDomain | parent-child | http://fasb.org/us-gaap/role/disclosure/Equity | |
us-gaap:AuctionMarketPreferredSecuritiesStockSeriesTitleDomain | dimension-default | http://fasb.org/us-gaap/role/disclosure/EquityAuctionMarketPreferredSecuritiesStockSeriesTable | |
us-gaap:AuctionMarketPreferredSecuritiesStockSeriesTitleDomain | dimension-domain | http://fasb.org/us-gaap/role/disclosure/EquityAuctionMarketPreferredSecuritiesStockSeriesTable |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:AuctionMarketPreferredSecuritiesStockSeriesTable | parent-child | http://fasb.org/us-gaap/role/disclosure/Equity | |
us-gaap:AuctionMarketPreferredSecuritiesStockSeriesTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/EquityAuctionMarketPreferredSecuritiesStockSeriesTable |