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CONTINGENCIES (Details) - Great Lakes v. Essar Steel Minnesota LLC, et al. - Great Lakes - USD ($)
$ in Millions
1 Months Ended
Sep. 16, 2015
Oct. 29, 2009
Apr. 30, 2017
Contingencies      
Judgement awarded     $ 31.5
Essar      
Contingencies      
Recovery sought   $ 33.0  
Judgement awarded $ 32.9