Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator:
Net loss	$ (7,983)	$ (26,576)
Denominator:
Weighted-average common shares outstanding, basic (in shares)	112,907	109,692
Effect of potential dilutive common shares	0	0
Denominator:
Weighted-average common shares outstanding, diluted (in shares)	112,907	109,692
Earnings per share, basic	$ (0.07)	$ (0.24)
Earnings per share, diluted	$ (0.07)	$ (0.24)