| Standard label: | Income Tax Examination, Interest Accrued |
| Name: | us-gaap:IncomeTaxExaminationInterestAccrued |
| Documentation: | The amount of estimated interest accrued as of the balance sheet date arising from income tax examinations. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:IncomeTaxExaminationInterestAccrued |
| Label | Role | Language |
| Income Tax Examination, Interest Accrued | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 740 10 50 15 (c) | http://fasb.org/us-gaap/role/ref/legacyRef | 740 |
| Part Of Roll Up: |
| us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued |