| Standard label: | Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments, Tax, Parent |
| Name: | us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsTaxParent |
| Documentation: | Amount, after adjustments, of tax expense (benefit) for gain (loss) from increase (decrease) in value of excluded component of derivative designated and qualifying as hedge, attributable to attributable to parent. Adjustments include, but are not limited to, reclassifications for sale and settlement, and amounts recognized under systematic and rational method. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsTaxParent |
| Label | Role | Language |
| Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments, Tax, Parent | http://www.xbrl.org/2003/role/label | en-US |
| Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments, Tax, Parent, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 220 10 45 10A (dd) | http://www.xbrl.org/2003/role/disclosureRef | 220 |
| FASB Accounting Standards Codification 815 10 50 4C (bb) | http://www.xbrl.org/2003/role/disclosureRef | 815 |