BASIS OF PRESENTATION (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended	12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Out of Period Adjustment
Adjustment to correct prior period valuation of interest support agreement			$ 10.2
Portion of prior period adjustment to correct valuation of interest support agreement related to the period	$ 6.6	$ 1.7		$ 1.9