| Standard label: | Unrecognized Tax Benefits |
| Name: | us-gaap:UnrecognizedTaxBenefits |
| Documentation: | Amount of unrecognized tax benefits. |
| 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:UnrecognizedTaxBenefits |
| Label | Role | Language |
| Unrecognized Tax Benefits | http://www.xbrl.org/2003/role/label | en-US |
| Unrecognized Tax Benefits, Ending Balance | http://www.xbrl.org/2003/role/periodEndLabel | en-US |
| Unrecognized Tax Benefits, Beginning Balance | http://www.xbrl.org/2003/role/periodStartLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 740 10 45 10B | http://www.xbrl.org/2003/role/disclosureRef | 740 |
| FASB Accounting Standards Codification 740 10 50 15A (a) | http://fasb.org/us-gaap/role/ref/legacyRef | 740 |