XML 68 R12.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Inventories | 12 Months Ended
--- | ---
Dec. 31, 2014
Inventories |
Inventories | Note 4. Inventories Our inventories are primarily stated on the last-in, first-out ("LIFO") method, which is not in excess of market. We use the LIFO method of inventory valuation because it results in a better matching of costs and revenues. As of December 31, 2014 and 2013, cost on the first-in, first-out ("FIFO") method exceeded the LIFO value of inventories by $143.1 million and $88.6 million, respectively. Inventories of $305.9 million and $206.8 million as of December 31, 2014 and 2013, respectively, were stated on the FIFO method, which is not in excess of market. Cost increases in 2014 for the majority of our products were the primary cause of the $54.5 million increase in the LIFO valuation reserve, which increased cost of sales. Cost decreases in 2013 and 2012 for the majority of our products were the primary cause of the $50.2 million and $64.1 million reductions in the LIFO valuation reserve, respectively, which lowered cost of sales. There were insignificant liquidations of LIFO inventory quantities in 2014, 2013 and 2012.

X
- Definition The 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. + References 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 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 3: 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 + Details
Name: | us-gaap_InventoryDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_InventoryNetAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration