| Standard label: | Distributions Made to Limited Liability Company (LLC) Member [Table] |
| Name: | us-gaap:DistributionsMadeToLimitedLiabilityCompanyLLCMemberTable |
| Documentation: | Disclosure of information about payment of cash or unit made to member of a limited liability company (LLC). |
| Object type: | cm:Table |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DistributionsMadeToLimitedLiabilityCompanyLLCMemberTable |
| Label | Role | Language |
| Distributions Made to Limited Liability Company (LLC) Member [Table] | 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 272 10 50 3 (b) | 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 |