Shareholders' Equity and Earnings (Loss) Per Common Share - Basic and Diluted Earnings (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Shareholders' Equity and Earnings (Loss) Per Common Share
Net income (loss)	$ (89,725)	$ (67,261)	$ 74,144
Net (income) loss attributable to redeemable noncontrolling interests	8,728	4,958	(8,573)
Net loss attributable to noncontrolling interests	1,740
Net income (loss) attributable to common shareholders	(79,257)	(62,303)	65,571
Distributions to participating securities	(2,854)	(3,100)	(2,489)
Net income (loss) available to common shareholders - basic	(82,111)	(65,403)	63,082
Net income (loss) available to common shareholders - diluted	$ (82,111)	$ (65,403)	$ 63,082
Weighted average number of common shares outstanding - basic	130,839	133,451	130,687
Weighted average number of common shares outstanding - diluted	130,839	133,451	130,687
Earnings (loss) per common share - basic	$ (0.63)	$ (0.49)	$ 0.48
Earnings (loss) per common share - diluted	$ (0.63)	$ (0.49)	$ 0.48