| Standard label: | Excess of Replacement or Current Costs over Stated LIFO Value |
| Name: | us-gaap:ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue |
| Documentation: | The excess of replacement or current cost over the stated LIFO (last in first out) inventory value when the LIFO inventory method is utilized. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue |
| Label | Role | Language |
| Excess of Replacement or Current Costs over Stated LIFO Value | 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 |