Net Income Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net (loss) income	$ (5,999)	$ 31,534	$ (6,733)	$ 51,136
Preferred Stock Dividends	(2,294)	(2,092)	(4,588)	(3,313)
Net (loss) income to common shareholders	(8,293)	29,442	(11,321)	47,823
Effect of dilutive stock options, income	0	0	0	0
Diluted net (loss) income	$ (8,293)	$ 29,442	$ (11,321)	$ 47,823
Weighted Average Common Shares	54,711,108	54,973,561	54,668,591	54,638,651
Effect of dilutive stock options, number of shares	0	0	0	0
Diluted, Weighted Average Number Common Shares	54,711,108	54,973,561	54,668,591	54,638,651
Net (loss) income per common share - basic and diluted	$ (0.15)	$ 0.54	$ (0.21)	$ 0.88