| Standard label: | Lease Incentive, Payable, Current | 
| Name: | us-gaap:LeaseIncentivePayableCurrent | 
| Documentation: | This item represents an incentive or inducement contractually stipulated between parties to a lease whereby the lessor has committed to provide the entity (lessee) with a cash payment as inducement to enter the lease. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). | 
| 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:LeaseIncentivePayableCurrent | 
| Label | Role | Language | 
| Lease Incentive, Payable, Current | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 210 10 S99 1 (SX 210.5-02.20) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 | 
| FASB Accounting Standards Codification 840 20 55 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 840 | 
| FASB Accounting Standards Codification 840 20 25 6 | http://fasb.org/us-gaap/role/ref/legacyRef | 840 | 
| FASB Accounting Standards Codification 840 20 25 7 | http://fasb.org/us-gaap/role/ref/legacyRef | 840 | 
| Part Of Roll Up: | 
| us-gaap:AccruedLiabilitiesCurrent |