| Standard label: | Common Stocks, Including Additional Paid in Capital, Net of Discount |
| Name: | us-gaap:CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount |
| Documentation: | Amount after discount on shares of par value plus amounts in excess of par value or issuance value for common stock held by shareholders. Includes common stock repurchased and held as treasury stock. |
| 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:CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount |
| Label | Role | Language |
| Common Stocks, Including Additional Paid in Capital, Net of Discount | http://www.xbrl.org/2003/role/label | en-US |
| Common Stocks, Including Additional Paid in Capital, Net of Discount, 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(29)) | 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 |
| FASB Accounting Standards Codification 505 10 S99 2 (SX 210.4-07) | http://fasb.org/us-gaap/role/ref/legacyRef | 505 |