| Standard label: | Preferred Stock, Capital Shares Reserved for Future Issuance |
| Name: | us-gaap:PreferredStockCapitalSharesReservedForFutureIssuance |
| Documentation: | Aggregate number of nonredeemable preferred shares reserved for future issuance. |
| Object type: | cm:Concept |
| Data type: | Shares (xbrli:sharesItemType) |
| Period type: | As Of (instant) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PreferredStockCapitalSharesReservedForFutureIssuance |
| Label | Role | Language |
| Preferred Stock, Capital Shares Reserved for Future Issuance | http://www.xbrl.org/2003/role/label | 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 |