| Standard label: | Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, before Income Tax |
| Name: | us-gaap:DiscontinuedOperationAmountOfAdjustmentToPriorPeriodGainLossOnDisposalBeforeIncomeTax |
| Documentation: | Amount before tax of an increase (decrease) to a gain (loss) previously reported in discontinued operations in a prior period. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DiscontinuedOperationAmountOfAdjustmentToPriorPeriodGainLossOnDisposalBeforeIncomeTax |
| Label | Role | Language |
| Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, before Income Tax | http://www.xbrl.org/2003/role/label | en-US |
| Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, before Income Tax, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 205 20 50 3A | http://fasb.org/us-gaap/role/ref/legacyRef | 205 |
| FASB Accounting Standards Codification 205 20 45 4 | http://fasb.org/us-gaap/role/ref/legacyRef | 205 |
| FASB Accounting Standards Codification 205 20 45 5 | http://fasb.org/us-gaap/role/ref/legacyRef | 205 |
| Part Of Roll Up: |
| us-gaap:DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax |