| Standard label: | Accrued Liabilities [Member] |
| Name: | us-gaap:AccruedLiabilitiesMember |
| Documentation: | This item represents obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. |
| Object type: | cm:Member |
| Data type: | [Member] (nonnum:domainItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:AccruedLiabilitiesMember |
| Label | Role | Language |
| Accrued Liabilities [Member] | 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 |