DEBT - CREDIT FACILITIES (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended	3 Months Ended	12 Months Ended	15 Months Ended			12 Months Ended		12 Months Ended
	Dec. 31, 2013 Quarters	Dec. 31, 2011 Revolving Credit Facility [Member]	Dec. 31, 2013 Revolving Credit Facility [Member]	Sep. 30, 2013 Revolving Credit Facility [Member]	Dec. 31, 2013 Debt Covenant Requirement [Member]	Dec. 31, 2013 Debt Covenant Actual [Member]	Dec. 31, 2012 Revolving Credit Facility [Member]	Dec. 31, 2013 Revolving Credit Facility [Member]	Dec. 31, 2013 Term loan facility [Member]	Dec. 31, 2011 Term loan facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Initiation Date							Dec. 21, 2011
Line of Credit Facility, Agreement Term			5 years
Line of Credit Facility, Maximum Borrowing Capacity			$ 1,000.0
Line of Credit Facility, Amount Repaid										318.8
Line of Credit Facility, Decrease, Repayments		235.0		625.0
Unamortized debt costs as interest expense									$ 1.0
Line of Credit Facility, Interest Rate Description			bears interest at varying rates based upon a base rate or LIBOR plus (in each case) a percentage based on the Company's debt rating with Standard & Poor's and Moody's Rating Services
Line of Credit Facility, Covenant Terms			The Credit Agreement also contains limitations on aggregate subsidiary indebtedness and a debt covenant that requires that the Company maintain on the last day of any period of four consecutive fiscal quarters, in each case taken as one accounting period, a ratio of total debt to consolidated EBITDA of not more than 3.0 to 1.0.
Debt to EBITDA (leverage) ratio					3.0	1.0		2,400,000.0
Debt covenant, requirement for number of consecutive fiscal quarters	4
Line of Credit Facility, Interest Rate at Period End								1.10%