| Standard label: | AOCI Including Portion Attributable to Noncontrolling Interest, Period Increase (Decrease) | 
| Name: | us-gaap:AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease | 
| Documentation: | Amount of increase (decrease) in accumulated other comprehensive income. | 
| Object type: | cm:Concept | 
| Data type: | Monetary (xbrli:monetaryItemType) | 
| Period type: | For Period (duration) | 
| Balance type: | (no balance type) | 
| Abstract: | false | 
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease | 
| Label | Role | Language | 
| AOCI Including Portion Attributable to Noncontrolling Interest, Period Increase (Decrease) | http://www.xbrl.org/2003/role/label | en-US | 
| AOCI Including Portion Attributable to Noncontrolling Interest, Period Increase (Decrease), Total | http://www.xbrl.org/2003/role/totalLabel | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 220 10 45 14A | http://www.xbrl.org/2009/role/commonPracticeRef | 220 |