| Standard label: | Partners' Capital Account, Treasury Units, Purchased |
| Name: | us-gaap:PartnersCapitalAccountTreasuryUnitsPurchases |
| Documentation: | Value of units that were previously issued and have been repurchased during the year. |
| 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:PartnersCapitalAccountTreasuryUnitsPurchases |
| Label | Role | Language |
| Partners' Capital Account, Treasury Units, Purchased | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 272 10 45 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 272 |