| Standard label: | Limited Partners' Capital Account, Class [Domain] | 
| Name: | us-gaap:LimitedPartnersCapitalAccountClassDomain | 
| Documentation: | Description of the type or class of limited partner's capital account. | 
| 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:LimitedPartnersCapitalAccountClassDomain | 
| Label | Role | Language | 
| Limited Partners' Capital Account, Class [Domain] | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 272 10 50 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 272 | 
| FASB Accounting Standards Codification 505 10 S99 5 (SAB TOPIC 4.F) | http://fasb.org/us-gaap/role/ref/legacyRef | 505 |