Net Income (Loss) Per Common Share - Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator
Income (loss) from continuing operations	$ (21,038)	$ (297,329)	$ (20,312)	$ (311,065)
Noncontrolling interests' share in (earnings) loss from continuing operations	82	96	157	169
Net income (loss) attributable to common stockholders before discontinued operations	(20,956)	(297,233)	(20,155)	(310,896)
Income (loss) from discontinued operations	307	(1,612)	736	(3,027)
Net income (loss) attributable to common shares	$ (20,649)	$ (298,845)	$ (19,419)	$ (313,923)
Denominator
Weighted average shares outstanding - basic	407,339	377,445	404,666	351,695
Weighted average shares outstanding - diluted	407,339	377,445	404,666	351,695
Net income (loss) per share attributable to common stockholders
Income (Loss) from Continuing Operations, Per Basic Share	$ (0.05)	$ (0.79)	$ (0.05)	$ (0.88)
Income (Loss) from Continuing Operations, Per Diluted Share	(0.05)	(0.79)	(0.05)	(0.88)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	0	0	0	(0.01)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	$ 0	$ 0	$ 0	$ (0.01)