DERIVATIVES (Additional Information) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Interest Rate Cap [Member]
Derivative [Line Items]
Number of Interest rate cap agreements	5
Interest rate cap agreements period	10 years
Interest cap rate description	The interest rate cap provides limits on the six-month Libor rate ("Base Rate") used to calculate the coupon interest on outstanding
Interest Rate Cap [Member] | Minimum [Member]
Derivative [Line Items]
Interest cap rate notional amount	14.8
Interest Rate Cap [Member] | Maximum [Member]
Derivative [Line Items]
Interest cap rate notional amount	586.3
Interest Rate Cap [Member] | Six-month Libor rate [Member]
Derivative [Line Items]
Interest on outstanding amounts on the Facility Agreement	4.00%
Base rate to be capped, should the Base Rate not exceed 6.50%	5.50%
Base rate to be lowered from LIBOR, should the base rate exceed 6.50%	1.00%
Fee for interest rate cap agreements	12.4
Warrants issued in conjunction with contingent equity agreement [Member]
Derivative [Line Items]
Amortization period	1 year