| Standard label: | Increase (Decrease) in Partners' Capital |
| Name: | us-gaap:PartnersCapitalAccountPeriodIncreaseDecrease |
| Documentation: | Changes in the ownership interest during the period of each class of partners. Partners include general, limited and preferred partners. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PartnersCapitalAccountPeriodIncreaseDecrease |
| Label | Role | Language |
| Increase (Decrease) in Partners' Capital | http://www.xbrl.org/2003/role/label | en-US |
| Increase (Decrease) in Partners' Capital, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 505 10 S99 1 (SX 210.3-04) | http://fasb.org/us-gaap/role/ref/legacyRef | 505 |
| FASB Accounting Standards Codification 505 10 S99 5 (SAB Topic 4.F) | http://fasb.org/us-gaap/role/ref/legacyRef | 505 |