INCOME TAXES (Condensed) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
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 (benefit) rate (as a percent)	40.20%	39.70%	39.50%	37.90%
Benefit from reduced state deferred tax liabilities to reflect enactment of lower tax rates in some states (as a percent)			0.30%
Tax benefit from reversal of valuation allowance on foreign tax credit carryovers (as a percent)				1.40%
Income taxes paid (in dollars)			$ 17.3	$ 15.8
Income tax refunds received (in dollars)			$ 0.1	$ 2.0