SUBSEQUENT EVENTS - Narrative (Details) (USD $)	0 Months Ended	3 Months Ended		0 Months Ended
	Jan. 12, 2015	Mar. 31, 2015	Mar. 31, 2014	May 05, 2015
Subsequent Event [Line Items]
Common dividends, declared (in dollars per share)	$ 0.39	$ 0.39	$ 0.36
Subsequent Event [Member] | Dividend Declared [Member]
Subsequent Event [Line Items]
Common dividends, declared (in dollars per share)				$ 0.39
Preferred stock dividends, declared (in dollars per share)				$ 0.4453125