| Standard label: | Gain (Loss) on Contract Termination |
| Name: | us-gaap:GainLossOnContractTermination |
| Documentation: | Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform. |
| 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:GainLossOnContractTermination |
| Label | Role | Language |
| Gain (Loss) on Contract Termination | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 230 10 45 28 | http://fasb.org/us-gaap/role/ref/legacyRef | 230 |
| FASB Accounting Standards Codification 420 10 50 1 (b)(1) | http://fasb.org/us-gaap/role/ref/legacyRef | 420 |
| Part Of Roll Up: |
| us-gaap:NonoperatingIncomeExpense |
| us-gaap:AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities |