Income (Loss) Per Share - Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income (Loss) Per Common Share
Net income (loss)	$ (567)	$ (18,530)
Net income (loss) per common share:
Basic (in dollars per share)	$ (0.01)	$ (0.40)
Diluted (in dollars per share)	$ (0.01)	$ (0.40)
Weighted average shares reconciliation
Basic weighted average shares outstanding	47,811	46,848
Diluted weighted average shares outstanding	47,811	46,848