| Standard label: | Partners' Capital Account, Units, Acquisitions |
| Name: | us-gaap:PartnersCapitalAccountUnitsAcquisitions |
| Documentation: | Change in the number of units for each class of partners' capital accounts during the year due to acquisitions. Partners include general, limited and preferred partners. |
| Object type: | cm:Concept |
| Data type: | Shares (xbrli:sharesItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PartnersCapitalAccountUnitsAcquisitions |
| Label | Role | Language |
| Partners' Capital Account, Units, Acquisitions | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 272 10 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 272 |
| 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 805 50 05 7 | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| FASB Accounting Standards Codification 805 50 30 7 | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| FASB Accounting Standards Codification 805 50 30 8 | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| FASB Accounting Standards Codification 805 50 30 9 | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |