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DEBT (Details) - New Secured Credit Agreement [Member] - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Line of Credit Facility [Line Items]          
Outstanding borrowings $ 206.3   $ 206.3   $ 232.6
Maturity date     Jun. 18, 2019    
Aggregate amount of line of credit $ 238.0   $ 238.0    
Interest rate on borrowings outstanding (in hundredths) 2.94%   2.94%   2.94%
Interest expense incurred $ 2.0 $ 0.2 $ 4.2 $ 0.2  
Line of credit, current borrowing capacity 39.0   39.0    
Revolving Credit Facility [Member]          
Line of Credit Facility [Line Items]          
Available line of credit 50.0   50.0    
Term Loan [Member]          
Line of Credit Facility [Line Items]          
Available line of credit 145.0   145.0    
Delayed Draw Term Loan [Member]          
Line of Credit Facility [Line Items]          
Available line of credit $ 70.0   $ 70.0