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INVESTMENTS AND DEPOSITS (Detail) - Schedule of Financial information For Equity Method Investment (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 6 Months Ended 10 Months Ended
Dec. 31, 2012
Patriot [Member]
Dec. 31, 2011
Patriot [Member]
Dec. 31, 2010
Patriot [Member]
Dec. 31, 2012
Big River [Member]
Dec. 31, 2011
Big River [Member]
Dec. 31, 2010
Big River [Member]
Dec. 31, 2010
NuGen [Member]
Oct. 31, 2011
NuGen [Member]
Net sales and revenue $ 365,302 $ 377,250 $ 261,117 $ 1,135,956 $ 1,162,308 $ 742,163 $ 121,871 $ 256,973
Gross profit 7,685 29,207 26,936 20,651 105,207 83,671 12,977 24,490
Income from continuing operations 1,320 22,615 21,385 2,799 71,384 52,478 9,772 18,133
Net income $ 1,320 $ 22,615 $ 21,385 $ 2,799 $ 71,384 $ 52,478 $ 9,772 $ 18,133