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INCOME TAXES (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2018
INCOME TAXES      
Statutory income tax rate (as a percent) 21.00% 35.00%  
Income tax benefit resulting from Tax Reform     $ 0.9