| Standard label: | Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table] |
| Name: | us-gaap:SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleTable |
| Documentation: | A summary of unrecognized tax benefits for which a material change is reasonably possible in the next twelve months, typically including the nature of the uncertainty, the event(s) that could cause a material change, and an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made. An unrecognized tax benefit is the difference between a tax position taken in a tax return for which the resultant tax benefit has not been recognized in the financial statements because it is more likely than not, based on the technical merits of the position, that the tax position will not be sustained upon examination. |
| Object type: | cm:Table |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleTable |
| Label | Role | Language |
| Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 740 10 50 15 (d) | http://fasb.org/us-gaap/role/ref/legacyRef | 740 |