Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Noncontrolling interest associated with discontinued operations	$ 47,898	$ 13,538	$ 22,623
Net income (loss)	$ (98,933)	$ (160,500)	$ (84,240)