| Standard label: | AOCI, Derivative Qualifying as Hedge, Excluded Component, Parent [Member] | 
| Name: | us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember | 
| Documentation: | Accumulated other comprehensive income (loss) from increase (decrease) in value of excluded component of derivative hedge, attributable to parent. | 
| 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:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember | 
| Label | Role | Language | 
| AOCI, Derivative Qualifying as Hedge, Excluded Component, Parent [Member] | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 220 10 45 14A | http://www.xbrl.org/2003/role/disclosureRef | 220 | 
| FASB Accounting Standards Codification 815 30 50 2 (a) | http://www.xbrl.org/2003/role/disclosureRef | 815 |