| Standard label: | Long-term Purchase Commitment [Table Text Block] |
| Name: | us-gaap:LongTermPurchaseCommitmentTextBlock |
| Documentation: | Tabular disclosure of key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount. |
| Object type: | cm:Level3TextBlock |
| 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:LongTermPurchaseCommitmentTextBlock |
| Examples of this text block disclosure: | LongTermPurchaseCommitment |
| Label | Role | Language |
| Long-term Purchase Commitment [Table Text Block] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |