| Standard label: | Concentration Risk, Grantor |
| Name: | us-gaap:ConcentrationRiskGrantor |
| Documentation: | Description of risks that arise due to the amount of funding received from a particular grantor, or reliance placed on that grantor. At a minimum, the description informs financial statement users of the general nature of the risk. |
| Object type: | cm:Concept |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:ConcentrationRiskGrantor |
| Label | Role | Language |
| Concentration Risk, Grantor | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 275 10 50 16 | http://fasb.org/us-gaap/role/ref/legacyRef | 275 |
| FASB Accounting Standards Codification 275 10 50 18 (a) | http://fasb.org/us-gaap/role/ref/legacyRef | 275 |
| FASB Accounting Standards Codification 275 10 50 20 | http://fasb.org/us-gaap/role/ref/legacyRef | 275 |