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Asset Impairment and Restructuring Charges (Details) - USD ($)
$ in Thousands
12 Months Ended
Oct. 31, 2016
Oct. 31, 2015
Oct. 31, 2014
Restructuring Cost and Reserve [Line Items]      
Asset impairment charges $ 2,031 $ 0 $ (4,026)
Valley City Steel [Member]      
Restructuring Cost and Reserve [Line Items]      
Asset impairment charges 273    
Impaired Long-Live Assets Held and Used [Member]      
Restructuring Cost and Reserve [Line Items]      
Other Asset Impairment Charges $ 476    
Mansfield Blanking Division [Member]      
Restructuring Cost and Reserve [Line Items]      
Recovery of Impairment Charge     $ 4,026