| Standard label: | Loss Contingency, Claims Settled, Number |
| Name: | us-gaap:LossContingencyClaimsSettledNumber |
| Documentation: | Number of claims settled. |
| Object type: | cm:Concept |
| Data type: | Integer (xbrli:integerItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:LossContingencyClaimsSettledNumber |
| Label | Role | Language |
| Loss Contingency, Claims Settled, Number | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| Part Of Roll Up: |
| us-gaap:LossContingencyClaimsSettledAndDismissedNumber |