| Standard label: | Derivative Assets (Liabilities), at Fair Value, Net |
| Name: | us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet |
| Documentation: | Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet |
| Label | Role | Language |
| Derivative Assets (Liabilities), at Fair Value, Net | http://www.xbrl.org/2003/role/label | en-US |
| Derivative Assets (Liabilities), at Fair Value, Net, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 815 10 45 5 | http://fasb.org/us-gaap/role/ref/legacyRef | 815 |