Earnings Per Share - Summary of Computation of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net (loss) income from continuing operations attributable to common stockholders	$ (3,578)	$ 1,968
Earnings allocated to unvested participating securities	(19)	(11)
Numerator for (loss) income from continuing operations per common share - basic and diluted	(3,597)	1,957
Net income from discontinued operations attributable to common stockholders		1,380
Earnings allocated to unvested participating securities		(7)
Numerator for income from discontinued operations per common share - basic and diluted		1,373
Numerator for (loss) income per common share - basic and diluted	$ (3,597)	$ 3,330
Denominator:
Weighted average common shares outstanding	218,666,005	227,769,213
Effect of dilutive stock-based compensation plans		36,000
Denominator for diluted (loss) income per common share - weighted average shares	218,666,005	227,805,176
(Loss) Income per Common Share - Basic and Diluted:
Continuing operations, net	$ (0.02)	$ 0.01
Discontinued operations, net		0.00
(Loss) income per common share - basic and diluted	$ (0.02)	$ 0.01