| Standard label: | Construction in Progress Expenditures Incurred but Not yet Paid |
| Name: | us-gaap:ConstructionInProgressExpendituresIncurredButNotYetPaid |
| Documentation: | Future cash outflow to pay for construction in progress expenditures that have occurred. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:ConstructionInProgressExpendituresIncurredButNotYetPaid |
| Label | Role | Language |
| Construction in Progress Expenditures Incurred but Not yet Paid | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 230 10 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 230 |
| FASB Accounting Standards Codification 230 10 50 4 | http://fasb.org/us-gaap/role/ref/legacyRef | 230 |
| FASB Accounting Standards Codification 230 10 50 5 | http://fasb.org/us-gaap/role/ref/legacyRef | 230 |