| Standard label: | Deferred Compensation Arrangement with Individual, Fair Value of Shares Issued |
| Name: | us-gaap:DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued |
| Documentation: | The total fair value of shares issued during the period under a deferred compensation arrangement. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued |
| Label | Role | Language |
| Deferred Compensation Arrangement with Individual, Fair Value of Shares Issued | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 718 10 50 2 (c)(2) | http://fasb.org/us-gaap/role/ref/legacyRef | 718 |