Income (Loss) Per Share - Computation of Basic and Diluted Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net income (loss) attributable to common shareholders	$ (18,641)	$ 5,905
Weighted-average shares	15,403	15,275
Basic and diluted income (loss) per common share	$ (1.21)	$ 0.39