INCOME TAXES - Income Before Income Taxes and Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income (loss) from continuing operations before income taxes:
United States	$ 114.4	$ 137.1	$ 26.0
Foreign	(3.7)	(19.7)	44.6
Income from continuing operations before income taxes	110.7	117.4	70.6
Provision for (benefit from) income taxes:
United States federal	37.7	54.6	24.8
State and local	16.9	18.1	13.8
Foreign	(3.2)	5.1	7.4
Provision for income taxes	51.4	77.8	46.0
Current:
United States federal	(2.7)	2.6	3.2
State and local	4.1	3.7	0.7
Foreign	21.7	7.2	11.3
Current income tax expense (benefit)	23.1	13.5	15.2
Deferred:
United States federal	40.4	52.0	21.6
State and local	12.8	14.4	13.1
Foreign	(24.9)	(2.1)	(3.9)
Provision for deferred income taxes	$ 28.3	$ 64.3	$ 30.8