2.4.0.82106100 - Disclosure - Inventoriestruefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0000069488duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_InventoryDisclosureAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Inventory Disclosure [Abstract]2false 2us-gaap_InventoryDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;text-decoration:underline;">Inventories</font></div><div style="line-height:120%;padding-top:12px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Approximate</font><font style="font-family:inherit;font-size:10pt;">ly </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">twenty percent</font><font style="font-family:inherit;font-size:10pt;"> of the Compan</font><font style="font-family:inherit;font-size:10pt;">y&#8217;s inventories use the last-in, first-out (LIFO)&#160;method of determining cost. An actual valuation of inventory under the LIFO method can be made only at the end of each year based on the inventory levels and costs at that time. Accordingly, interim LIFO calculations must necessarily be based on management&#8217;s estimates of expected year-end inventory levels and costs. Because these are subject to many factors beyond management&#8217;s control, estimated interim results, which were immaterial, are subject to change in the final year-end LIFO inventory valuation and therefore, no adjustment was recorded as of </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">June&#160;30, 2013</font><font style="font-family:inherit;font-size:10pt;">.</font></div></div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section A -Paragraph 9 -Chapter 3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Subparagraph a, b, c -Article 5 false0InventoriesfalseInventoriesUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.myersindustries.com/role/Inventories12