| Standard label: | Preferred Stock Dividends and Other Adjustments |
| Name: | us-gaap:PreferredStockDividendsAndOtherAdjustments |
| Documentation: | The aggregate value of preferred stock dividends and other adjustments necessary to derive net income apportioned to common stockholders. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PreferredStockDividendsAndOtherAdjustments |
| Label | Role | Language |
| Preferred Stock Dividends and Other Adjustments | http://www.xbrl.org/2003/role/label | en-US |
| Preferred Stock Dividends and Other Adjustments, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 260 10 50 1 (b) | http://www.xbrl.org/2009/role/commonPracticeRef | 260 |
| FASB Accounting Standards Codification 260 10 45 11 | http://fasb.org/us-gaap/role/ref/legacyRef | 260 |
| Part Of Roll Up: |
| us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic |