| Standard label: | Defined Benefit Plan, Unfunded Plan |
| Name: | us-gaap:DefinedBenefitPlanUnfundedPlan |
| Documentation: | Description of information about unfunded defined benefit plan. |
| Object type: | cm:Concept |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DefinedBenefitPlanUnfundedPlan |
| Label | Role | Language |
| Defined Benefit Plan, Unfunded Plan | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |