Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Numerator:
Loss from continuing operations	$ (123,766)	$ (2,458)
Less: preferred dividends	(6,144)	(5,480)
Loss from continuing operations attributable to common stockholders	$ (129,910)	$ (7,938)
Denominator:
Weighted average common shares outstanding (in shares)	21,569	13,313
Loss from continuing operations (in dollars per share)	$ (6.02)	$ (0.60)
Loss per common share - basic (in dollars per share)	$ (6.02)	$ (0.60)
Numerator:
Loss from continuing operations	$ (123,766)	$ (2,458)
Less: preferred dividends	(6,144)	(5,480)
Loss from continuing operations attributable to common stockholders	$ (129,910)	$ (7,938)
Denominator:
Weighted average common shares outstanding (in shares)	21,569	13,313
Dilutive common shares	21,569	13,313
Loss from continuing operations (in dollars per share)	$ (6.02)	$ (0.60)
Loss per common share - diluted (in dollars per share)	$ (6.02)	$ (0.60)
Modified Convertible Notes
Denominator:
Anti-dilutive securities excluded from computation of earnings per share (in shares)	1,278	1,247
Convertible Notes Due January 2018
Denominator:
Anti-dilutive securities excluded from computation of earnings per share (in shares)		4,565
2024 Convertible Notes
Denominator:
Anti-dilutive securities excluded from computation of earnings per share (in shares)	3,125
Preferred Series A
Denominator:
Anti-dilutive securities excluded from computation of earnings per share (in shares)		4,480
Warrants
Denominator:
Anti-dilutive securities excluded from computation of earnings per share (in shares)	650	650
Stock options
Denominator:
Anti-dilutive securities excluded from computation of earnings per share (in shares)	321	71
RSUs
Denominator:
Anti-dilutive securities excluded from computation of earnings per share (in shares)	5,821	746
PSUs
Denominator:
Anti-dilutive securities excluded from computation of earnings per share (in shares)	1,406	458