Condensed Consolidated Statements of Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (4,502)	$ (80,266)
Other comprehensive income (loss):
Unrealized loss on derivative contracts		(7,036)
Interest rate swap termination	2,829	1,666
Other comprehensive income (loss):	2,829	(5,370)
Comprehensive loss	(1,673)	(85,636)
Comprehensive loss attributable to noncontrolling interest	(22)	(1,508)
Comprehensive loss attributable to common shareholders	$ (1,651)	$ (84,128)