| Standard label: | Corporate, Non-Segment [Member] |
| Name: | us-gaap:CorporateNonSegmentMember |
| Documentation: | Corporate headquarters or functional department that may not earn revenues or may earn revenues that are only incidental to the activities of the entity and is not considered an operating segment. |
| Object type: | cm:Member |
| Data type: | [Member] (nonnum:domainItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:CorporateNonSegmentMember |
| Label | Role | Language |
| Corporate, Non-Segment [Member] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 280 10 50 4 | http://fasb.org/us-gaap/role/ref/legacyRef | 280 |