Earnings Per Share (Computation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share, Basic and Diluted
Net loss		$ (41,109)	$ (10,197)
Preferred stock dividends		(1,824)	(1,974)
Loss available to common stockholders		$ (42,933)	$ (12,171)
Weighted average shares outstanding		83,582	57,479
Weighted average shares outstanding for diluted loss per share		83,582	57,479
Basic loss per share		$ (0.51)	$ (0.21)
Diluted loss per share		$ (0.51)	$ (0.21)
Stock options [Member]
Earnings Per Share, Basic and Diluted
Excluded from the diluted EPS calculation because their effect would be anti-dilutive	[1]	15	30
Restricted Stock [Member]
Earnings Per Share, Basic and Diluted
Excluded from the diluted EPS calculation because their effect would be anti-dilutive	[1]	25	61

[1] Shares excluded from the diluted earnings per share calculation because their effect would be anti-dilutive.