INCOME TAXES INCOME TAXES - Narrative (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Loss Carryforwards [Line Items]
Excess Tax Benefit from Share-based Compensation, Financing Activities	$ 11.4
Undistributed earnings of foreign subsidiaries	0.7
Unrecognized tax benefits	25.5
Unrecognized tax benefits that would impact effective tax rate	0.3
Decrease in unrecognized tax benefits within the next twelve months	0.2
Unrecognized tax benefits, interest on income taxes expense	0.1	0.1	0.2
Unrecognized tax benefits, interest on income taxes accrued	0.1	0.2
Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	460.3
State
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	81.1
Canada | Foreign
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	49.1
Germany | Foreign
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 31.0