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Schedule III Supplemental Financial Information (Details) (USD $)
12 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2012
Southern Region [Member]
Dec. 31, 2012
Southern Region [Member]
Schedule III Supplemental Financial Information (Details) [Line Items]        
Inventory, LIFO Reserve, Effect on Income, Net $ 3,572,000,000      
Goodwill, Impairment Loss   $ 6,583,000 $ 6,583,000,000 $ 6,600,000