| Standard label: | Commitments Disclosure [Text Block] |
| Name: | us-gaap:CommitmentsDisclosureTextBlock |
| Documentation: | The entire disclosure for significant arrangements with third parties, which includes operating lease arrangements and arrangements in which the entity has agreed to expend funds to procure goods or services, or has agreed to commit resources to supply goods or services, and operating lease arrangements. Descriptions may include identification of the specific goods and services, period of time covered, minimum quantities and amounts, and cancellation rights. |
| Object type: | cm:Level1TextBlock |
| Data type: | Text Block (HTML) (nonnum:textBlockItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:CommitmentsDisclosureTextBlock |
| Examples of this text block disclosure: | CommitmentsDisclosure |
| Label | Role | Language |
| Commitments Disclosure [Text Block] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 440 | http://fasb.org/us-gaap/role/ref/legacyRef | 440 |