| Standard label: | Income Tax (Expense) Benefit, Continuing Operations, Government Grants |
| Name: | us-gaap:IncomeTaxExpenseBenefitContinuingOperationsGovernmentGrants |
| Documentation: | Amount of tax (expense) benefit from continuing operations attributable to government grants to the extent recognized as a reduction of income tax expense. |
| 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:IncomeTaxExpenseBenefitContinuingOperationsGovernmentGrants |
| Label | Role | Language |
| Income Tax (Expense) Benefit, Continuing Operations, Government Grants | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 740 10 50 9 (d) | http://fasb.org/us-gaap/role/ref/legacyRef | 740 |
| Part Of Roll Up: |
| us-gaap:IncomeTaxExpenseBenefit |