CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Dividends declared on common stock, per share			$ 0.1125
Series A Preferred Stock
Dividends declared on preferred stock, per share	$ 600.00	$ 600.00	$ 146.67
Series B Preferred Stock
Dividends declared on preferred stock, per share	$ 348.33