| Standard label: | Sale Leaseback Transaction, Cumulative Gain Recognized |
| Name: | us-gaap:SaleLeasebackTransactionCumulativeGainRecognized1 |
| Documentation: | Cumulative amount of gain recognized (out of deferred gain) as income or a reduction in rent expense. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:SaleLeasebackTransactionCumulativeGainRecognized1 |
| Label | Role | Language |
| Sale Leaseback Transaction, Cumulative Gain Recognized | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 840 40 35 1 | http://fasb.org/us-gaap/role/ref/otherTransitionRef | 840 |