Earnings (Loss) Per Share - Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Class of Stock [Line Items]
Loss from continuing operations	$ (1,122)	$ (111)	$ (1,866)	$ (140)
Loss from discontinued operations, net of tax	(2,704)	(2,169)	(13,937)	(32,325)
Net loss	$ (3,826)	$ (2,280)	$ (15,803)	$ (32,465)
Weighted average common shares outstanding - Basic (in shares)	57,854	54,910	57,764	54,827
Assumed conversions:
Weighted average common shares outstanding - Diluted (in shares)	57,854	54,910	57,764	54,827
Basic earnings (loss) per common share:
Continuing operations (in dollars per share)	$ (0.02)	$ 0.00	$ (0.03)	$ 0.00
Discontinued operations, net of tax (in dollars per share)	(0.05)	(0.04)	(0.24)	(0.59)
Basic earnings (loss) per common share (in dollars per share)	(0.07)	(0.04)	(0.27)	(0.59)
Earnings Per Share, Diluted [Abstract]
Continuing operations (in dollars per share)	(0.02)	0.00	(0.03)	0.00
Discontinued operations, net of tax (in dollars per share)	(0.05)	(0.04)	(0.24)	(0.59)
Diluted earnings (loss) per common share (in dollars per share)	$ (0.07)	$ (0.04)	$ (0.27)	$ (0.59)
Stock Options
Assumed conversions:
Incremental common shares from stock options and restricted stock units (in shares)	0	0	0	0
Restricted Stock Units
Assumed conversions:
Incremental common shares from stock options and restricted stock units (in shares)	0	0	0	0