INCOME TAXES Deferred Tax Liability Not Recognized (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Asset (Liability) [Line Items]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	$ 0.3
Unrecognized tax benefits including penalties and interest	1.8	$ 1.8	$ 1.0
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 1.8	$ 1.8	$ 1.0