Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (81,642)	$ (108,752)
Other comprehensive income (loss), net of taxes:
Unrealized gain on available-for-sale securities	0	17
Change in derivative instruments designated and qualifying in cash flow hedges	(8,214)	(2,191)
Other comprehensive loss, net of taxes	(8,214)	(2,174)
Comprehensive loss	(89,856)	(110,926)
Less: comprehensive loss attributable to noncontrolling interests and redeemable noncontrolling interests	(13,902)	(5,880)
Comprehensive loss attributable to Class A and Class B stockholders	$ (75,954)	$ (105,046)