Earnings Per Share Earnings Per Share (Schedule of Supplemental Earnings Per Common Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Net income (loss) from continuing operations	$ (46,970)	$ 3,214	$ (68,446)	$ 9,835
Basic weighted average common shares outstanding	51,225	45,213	48,827	45,109
Effect of dilutive instruments	0	945	0	879
Diluted weighted average common shares outstanding	51,225	46,158	48,827	45,988
Income (Loss) from Continuing Operations Per Common Share
Income (loss) from continuing operations - basic (in dollars per share)	$ (0.92)	$ 0.07	$ (1.40)	$ 0.22
Income (loss) from continuing operations - diluted (in dollars per share)	$ (0.92)	$ 0.07	$ (1.40)	$ 0.21