XML 54 R54.htm IDEA: XBRL DOCUMENT v2.4.0.8
Investments (Details) - Schedule of Income Loss Recognized From Equity Method Investments (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Oct. 31, 2013
Oct. 31, 2012
Oct. 31, 2013
Oct. 31, 2012
Investments (Details) - Schedule of Income Loss Recognized From Equity Method Investments [Line Items]        
Income Loss From Equity Method Investments $ 3,331 $ 1,542 $ 9,558 $ 1,503
Big River [Member]
       
Investments (Details) - Schedule of Income Loss Recognized From Equity Method Investments [Line Items]        
Income Loss From Equity Method Investments 1,576 (496) 4,312 165
Patriot [Member]
       
Investments (Details) - Schedule of Income Loss Recognized From Equity Method Investments [Line Items]        
Income Loss From Equity Method Investments $ 1,755 $ 2,038 $ 5,246 $ 1,338