INCOME TAXES - Income Before Income Taxes and Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014
Income (loss) from continuing operations before income taxes:
United States	$ 4.2	$ 114.4		$ 137.1
Foreign	4.3	(3.7)		(19.7)
Income from continuing operations before income taxes	8.5	110.7		117.4
Provision for (benefit from) income taxes:
United States federal	7.6	37.7		54.6
State and local	2.3	16.9		18.1
Foreign	15.6	(3.2)		5.1
Provision for income taxes	25.5	51.4		77.8
Current:
United States federal	9.0	(2.7)		2.6
State and local	2.5	4.1		3.7
Foreign	20.2	21.7		7.2
Current income tax expense (benefit)	31.7	23.1		13.5
Deferred:
United States federal	(1.4)	40.4		52.0
State and local	(0.2)	12.8		14.4
Foreign	(4.6)	(24.9)		(2.1)
Provision for deferred income taxes	$ (6.2)	$ 28.3	[1]	$ 64.3	[1]

[1] Adjusted as a result of the adoption of certain accounting pronouncements beginning on January 1, 2016. See Note 1, "Description of Business and Summary of Significant Accounting Policies - Recently Adopted Accounting Pronouncements," for details of these adjustments.