INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2013
INCOME TAXES
Effective tax rate (as a percent)	70.30%	38.20%	49.90%	36.90%
Impairment charges not deductible for tax purposes	$ 6.7		$ 6.7