XML 154 R126.htm IDEA: XBRL DOCUMENT v2.4.0.8
Quarterly Information (Unaudited) 2013 Financial Results Overview (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Quarterly Financial Data [Abstract]                    
Sebree power contract amortization $ 16,570 $ 11,720 $ 2,741   $ (31,031) $ 0 $ 0      
Lower of cost or market inventory adjustments 9,040 5,762 10,211 5,838 9,040     8,201 5,434 17,051
Litigation Settlement, Expense 8,400                  
Loss on early extinguishment of debt     3,272   (3,272) 0 (763)      
Relocation expense     1,750 2,213            
Increase (Decrease) in litigation reserve       2,225            
Unrealized gain (loss) on E.ON obligation       15,722 16,781 0 0      
Gain on bargain purchase     $ 5,253   $ 5,253 $ 0 $ 0