INCOME TAXES - Provision (Benefit) for Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Federal income taxes:
Current	$ 0.3	$ 0.6	$ 0.3
Deferred	(3.5)	3.3	(20.8)
Federal income taxes	(3.2)	3.9	(20.5)
Foreign	6.4	8.2	6.4
State	(6.3)	3.2	(6.2)
Income Tax Expense (Benefit)	$ (3.1)	$ 15.3	$ (20.3)