| Standard label: | Foreign Exchange Forward [Member] |
| Name: | us-gaap:ForeignExchangeForwardMember |
| Documentation: | Foreign exchange forward traded on an exchange (examples include but are not limited to the International Securities Exchange, Philadelphia Stock Exchange, or the Chicago Mercantile Exchange) for options or future contracts to buy or sell a certain currency, at a specified date, at a fixed exercise exchange rate. |
| Object type: | cm:Member |
| Data type: | [Member] (nonnum:domainItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:ForeignExchangeForwardMember |
| Label | Role | Language |
| Foreign Exchange Forward [Member] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |