| Standard label: | Impairment Effect on Earnings Per Share, Pretax |
| Name: | us-gaap:ImpairmentEffectOnEarningsPerSharePretax |
| Documentation: | Pretax earnings per share or per unit impact arising from asset impairment. |
| Object type: | cm:Concept |
| Data type: | Share (num:perShareItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:ImpairmentEffectOnEarningsPerSharePretax |
| Label | Role | Language |
| Impairment Effect on Earnings Per Share, Pretax | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |