Earnings Per Share - Computations Of Basic And Diluted EPS (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Basic and Diluted:
Net loss attributable to common shareholders	$ (2,878)	$ (11,938)
Less: Accretion of redeemable noncontrolling interests	(241)	(2,086)
Net loss available to common shareholders	$ (3,119)	$ (14,024)
Weighted average number of shares outstanding, basic and diluted (in shares)	149,935	148,863