| Standard label: | Inventory Work in Process, Policy [Policy Text Block] |
| Name: | us-gaap:InventoryWorkInProcessPolicy |
| Documentation: | Disclosure of accounting policy for the basis and manner that goods are added and removed from inventory in the course of production (work in process). If inventory is carried at cost, this disclosure includes the nature of the cost elements included in inventory and how cost is determined (such as FIFO, LIFO, average). |
| Object type: | cm:Level2TextBlock |
| 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:InventoryWorkInProcessPolicy |
| Label | Role | Language |
| Inventory Work in Process, Policy [Policy 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(b)) | 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 |
| FASB Accounting Standards Codification 235 10 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 235 |
| FASB Accounting Standards Codification 330 10 50 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 330 |