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Consolidated Condensed Statements Of Comprehensive Income (Loss) (Parenthetical) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Consolidated Condensed Statements of Comprehensive Income (Loss) [Abstract]        
Interest rate swap, tax $ 0 $ 0 $ 0 $ 0
Pension and postretirement obligations, tax 0 0 0 0
Foreign currency translation adjustment, tax $ 0 $ 0 $ 0 $ 0