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INCOME TAX UNCERTAINTIES (Details) - USD ($)
$ in Millions
Mar. 31, 2017
Dec. 31, 2016
INCOME TAX UNCERTAINTIES    
Income tax uncertainties $ 6.5 $ 6.4
Amount of income tax uncertainties that, if recognized, would impact the effective tax rate 6.5 $ 6.4
Decrease in liability for uncertain tax positions, high end of range $ 4.6