| Standard label: | Revenues |
| Name: | us-gaap:Revenues |
| Documentation: | Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). |
| 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:Revenues |
| Label | Role | Language |
| Revenues | http://www.xbrl.org/2003/role/label | en-US |
| Revenues, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 220 10 S99 2 (SX 210.5-03(1)) | http://www.xbrl.org/2003/role/disclosureRef | 220 |
| FASB Accounting Standards Codification 280 10 50 22 (a) | http://www.xbrl.org/2003/role/disclosureRef | 280 |
| FASB Accounting Standards Codification 280 10 50 22 (b) | http://www.xbrl.org/2003/role/disclosureRef | 280 |
| FASB Accounting Standards Codification 280 10 50 32 (a) | http://www.xbrl.org/2003/role/disclosureRef | 280 |
| Part Of Roll Up: |
| us-gaap:GrossProfit |