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
Numerator:
Income (Loss) from Continuing Operations	$ (22,541)	$ (21,270)	$ (36,033)	$ (66,074)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0	0	0	7,934
Net loss	$ (22,541)	$ (21,270)	$ (36,033)	$ (58,140)
Denominator:
Weighted average common shares outstanding	32,310	27,793	32,306	25,709
Effect of dilutive securities:
Outstanding common stock equivalents	0	0	0	0
Denominator for diluted earnings (loss) per share	32,310	27,793	32,306	25,709
Income (Loss) from Continuing Operations, Per Basic Share	$ (0.70)	$ (0.77)	$ (1.12)	$ (2.57)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	0.00	0.00	0.00	0.31
Basic loss per share	(0.70)	(0.77)	(1.12)	(2.26)
Income (Loss) from Continuing Operations, Per Diluted Share	(0.70)	(0.77)	(1.12)	(2.57)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	0.00	0.00	0.00	0.31
Diluted loss per share	$ (0.70)	$ (0.77)	$ (1.12)	$ (2.26)
Excluded outstanding share-based awards and securities having an anti-dilutive effect	2,457	929	2,457	929
Convertible Debt Securities
Effect of dilutive securities:
Excluded outstanding share-based awards and securities having an anti-dilutive effect	0	0	0	0
Convertible Notes Due in 2019 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.25%		5.25%
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities			9,900