| Standard label: | Preferred Stock, Discount on Shares |
| Name: | us-gaap:PreferredStockDiscountOnShares |
| Documentation: | Discount on preferred shares, or any unamortized balance thereof, shown separately as a deduction from the applicable account(s) as circumstances require. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PreferredStockDiscountOnShares |
| Label | Role | Language |
| Preferred Stock, Discount on Shares | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 505 10 S99 2 (SX 210.4-07) | http://fasb.org/us-gaap/role/ref/legacyRef | 505 |
| Part Of Roll Up: |
| us-gaap:PreferredStockIncludingAdditionalPaidInCapitalNetOfDiscount |