| Standard label: | SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Unconsolidated Subsidiaries |
| Name: | us-gaap:CashDividendsPaidToParentCompanyByUnconsolidatedSubsidiaries |
| Documentation: | This element represents disclosure of the aggregate cash dividends paid to the entity by unconsolidated subsidiaries. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:CashDividendsPaidToParentCompanyByUnconsolidatedSubsidiaries |
| Label | Role | Language |
| SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Unconsolidated Subsidiaries | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 235 10 S99 3 (SX 210.12-04(b)) | http://www.xbrl.org/2003/role/disclosureRef | 235 |