| Standard label: | Preferred Stock, Including Additional Paid in Capital |
| Name: | us-gaap:PreferredStockIncludingAdditionalPaidInCapital |
| Documentation: | Aggregate issuance value of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) issued and outstanding. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PreferredStockIncludingAdditionalPaidInCapital |
| Label | Role | Language |
| Preferred Stock, Including Additional Paid in Capital | http://www.xbrl.org/2003/role/label | en-US |
| Preferred Stock, Including Additional Paid in Capital, Ending Balance | http://www.xbrl.org/2003/role/periodEndLabel | en-US |
| Preferred Stock, Including Additional Paid in Capital, Beginning Balance | http://www.xbrl.org/2003/role/periodStartLabel | en-US |
| Preferred Stock, Including Additional Paid in Capital, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 210 10 S99 1 (SX 210.5-02(28)) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |
| FASB Accounting Standards Codification 210 10 S99 1 (SX 210.5-02(30)(a)(1)) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |
| FASB Accounting Standards Codification 505 10 S99 1 (SX 210.3-04) | http://fasb.org/us-gaap/role/ref/legacyRef | 505 |
| Part Of Roll Up: |
| us-gaap:PreferredStockIncludingAdditionalPaidInCapitalNetOfDiscount |