| Standard label: | Additional Paid in Capital |
| Name: | us-gaap:AdditionalPaidInCapital |
| Documentation: | Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred 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:AdditionalPaidInCapital |
| Label | Role | Language |
| Additional Paid in Capital | http://www.xbrl.org/2003/role/label | en-US |
| Additional Paid in Capital, Ending Balance | http://www.xbrl.org/2003/role/periodEndLabel | en-US |
| Additional Paid in Capital, Beginning Balance | http://www.xbrl.org/2003/role/periodStartLabel | en-US |
| 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(30)(a)(1)) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |
| Part Of Roll Up: |
| us-gaap:StockholdersEquity |