Earnings Per Share - (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Numerator:
Income (Loss) from Continuing Operations	$ (18,298)	$ (28,772)	$ (84,372)	$ (91,529)
Income (Loss) from Discontinued Operations, Net of Income Taxes	(1,688)	955	6,246	2,333
Net loss	$ (19,986)	$ (27,817)	$ (78,126)	$ (89,196)
Denominator:
Weighted average common shares outstanding	32,260	23,580	27,909	23,535
Effect of dilutive securities:
Outstanding common stock equivalents	0	0	0	0
Denominator for diluted earnings (loss) per share	32,260	23,580	27,909	23,535
Income (Loss) from Continuing Operations, Per Basic Share	$ (0.57)	$ (1.22)	$ (3.02)	$ (3.89)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	(0.05)	0.04	0.22	0.10
Basic loss per share	(0.62)	(1.18)	(2.80)	(3.79)
Income (Loss) from Continuing Operations, Per Diluted Share	(0.57)	(1.22)	(3.02)	(3.89)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	(0.05)	0.04	0.22	0.10
Diluted loss per share	$ (0.62)	$ (1.18)	$ (2.80)	$ (3.79)
Excluded outstanding share-based awards and securities having an anti-dilutive effect	2,326	1,049	2,326	1,049
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 2017 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.00%		7.00%
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