| Standard label: | Forward Contracts [Member] |
| Name: | us-gaap:ForwardContractsMember |
| Documentation: | Contracts negotiated between two parties to purchase and sell a specific quantity of a financial instrument, foreign currency, or commodity at a price specified at origination of the contract, with delivery and settlement at a specified future date. |
| 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:ForwardContractsMember |
| Label | Role | Language |
| Forward Contracts [Member] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 815 10 50 4D (a) | http://www.xbrl.org/2009/role/commonPracticeRef | 815 |