STOCKHOLDERS' EQUITY (Textual) (Details) $ in Millions	3 Months Ended			6 Months Ended	12 Months Ended
	Jun. 30, 2015 USD ($) class	Mar. 31, 2015 USD ($)	Dec. 31, 2013 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Class of Stock [Line Items]
Number of classes of preferred stock outstanding | class	4
Preferred Class C D [Member]
Class of Stock [Line Items]
Dividends deferred and accrued on preferred stock	$ 77.8			$ 77.8	$ 77.8
Dividends on preferred stock if the Company had continued to declare and accrue dividends	9.9	$ 9.6	$ 4.1	19.5	33.2
Dividends that would have been accrued and deferred as of the balance sheet date if the Company had continued to declare and accrue dividends	134.6			134.6	115.1
Preferred Class C D [Member] | Regularly Scheduled Dividend Payments [Member]
Class of Stock [Line Items]
Dividends deferred and accrued on preferred stock	68.4			68.4	68.4
Preferred Class C D [Member] | Cumulative Dividends On Unpaid Regular Dividends [Member]
Class of Stock [Line Items]
Dividends deferred and accrued on preferred stock	$ 9.4			$ 9.4	$ 9.4