| Standard label: | Inventory, LIFO Reserve | 
| Name: | us-gaap:InventoryLIFOReserve | 
| Documentation: | Amount by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods. | 
| Object type: | cm:Concept | 
| Data type: | Monetary (xbrli:monetaryItemType) | 
| Period type: | As Of (instant) | 
| Balance type: | Credit | 
| Abstract: | false | 
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:InventoryLIFOReserve | 
| Label | Role | Language | 
| Inventory, LIFO Reserve | 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(c)) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 | 
| Part Of Roll Up: | 
| us-gaap:InventoryAdjustments | 
| us-gaap:LIFOInventoryAmount |