Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
A reconciliation between basic and diluted earnings per share computations
Income available to common stockholders	$ 10,043	$ 2,607
Net loss available to common stockholders (in shares)	63,846	62,834
Attributable to participating securities	(289)	(67)
Net income or loss available to common stockholders, Loss (excluding income attributable to participating securities)	9,754	2,540
Stock options, Effect of dilutive securities
Net loss available to common stockholders, Per Share Amount	$ 0.15	$ 0.04
Stock options, effect of dilutive securities, (in shares)	56	195
Dilutive Securities, Effect on Basic Earnings Per Share, Restricted Stock	(289)	(67)
Restricted stock, effect of dilutive securities (in shares)	0	0
DILUTED EPS, Loss	$ 9,754	$ 2,540
DILUTED EPS, Shares	63,902	63,029
DILUTED EPS, Per Share Amount	$ 0.15	$ 0.04