| Standard label: | Schedule of Inventory, Current [Table Text Block] |
| Name: | us-gaap:ScheduleOfInventoryCurrentTableTextBlock |
| Documentation: | Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. |
| 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:ScheduleOfInventoryCurrentTableTextBlock |
| Examples of this text block disclosure: | InventoryCurrent |
| Label | Role | Language |
| Schedule of Inventory, Current [Table Text Block] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 210 10 S99 1 (SX 210.5-02(6)(a)) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |
| FASB Accounting Standards Codification 210 10 S99 1 (SX 210.5-02(6)(b)) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |
| FASB Accounting Standards Codification 210 10 S99 1 (SX 210.5-02(6)(c)) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |
| FASB Accounting Standards Codification 210 10 50 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |