Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
A reconciliation between basic and diluted earnings per share computations
Loss available to common stockholders	$ (24,143)	$ (61,083)	$ (63,280)	$ (183,323)
Net income (loss) available to common stockholders (in shares)	17,539	16,223	17,248	16,208
Net income (loss) available to common stockholders (in dollars per share)	$ (1.38)	$ (3.77)	$ (3.67)	$ (11.31)
Stock options, Effect of dilutive securities		$ 0		$ 0
Stock options, effect of dilutive securities, (in shares)		0		0
Attributable to participating securities		$ 0		$ 0
Restricted stock, effect of dilutive securities (in shares)	0	0	0	0
DILUTED EPS, Income (Loss)	$ (24,143)	$ (61,083)	$ (63,280)	$ (183,323)
DILUTED EPS (in shares)	17,539	16,223	17,248	16,208
DILUTED EPS (in dollars per share)	$ (1.38)	$ (3.77)	$ (3.67)	$ (11.31)