INCOME TAXES (Condensed) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
INCOME TAXES
Statutory federal tax rate (as a percent)			35.00%
State tax, low end of range of rate (as a percent)			6.00%
State tax, high end of range of rate (as a percent)			6.50%
Effective tax rate (as a percent)	37.00%	40.20%	37.20%	39.50%
Income taxes paid (in dollars)			$ 2.5	$ 17.3
Income tax refunds received (in dollars)			$ 10.8	$ 0.1