| Standard label: | Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net |
| Name: | us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet |
| Documentation: | Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. |
| 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:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet |
| Label | Role | Language |
| Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net | http://www.xbrl.org/2003/role/label | en-US |
| Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 815 10 50 4CC | http://www.xbrl.org/2009/role/commonPracticeRef | 815 |
| FASB Accounting Standards Codification 815 10 50 4C (e) | http://fasb.org/us-gaap/role/ref/legacyRef | 815 |
| Part Of Roll Up: |
| us-gaap:GainLossOnDerivativeInstrumentsNetPretax |