XML 26 R40.htm IDEA: XBRL DOCUMENT v2.4.1.9
INVENTORY VALUATION (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Inventory Disclosure [Abstract]    
Excess of current cost over LIFO cost $ 71,094us-gaap_ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue $ 71,311us-gaap_ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue