Loss Per Share - 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
Class of Stock [Line Items]
Net loss - Basic and Diluted	$ (30,185)	$ (1,515)
Weighted average common shares outstanding - Basic (in shares)	54,744	54,448
Assumed conversions:
Weighted average common shares outstanding - Diluted (in shares)	54,744	54,448
Basic loss per common share (in dollars per share)	$ (0.55)	$ (0.03)
Diluted loss per common share (in dollars per share)	$ (0.55)	$ (0.03)
Stock Options [Member]
Assumed conversions:
Incremental common shares from stock options and restricted stock units (in shares)	0	0
Restricted Stock Units [Member]
Assumed conversions:
Incremental common shares from stock options and restricted stock units (in shares)	0	0