UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF REDEEMABLE NONCONTROLLING INTERESTS AND STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Convertible Preferred Stock Series A Convertible Preferred Stock	Convertible Preferred Stock Series C Convertible Preferred Stock	Common Stock	Common Stock Series A Common Stock	Common Stock Series B Common Stock	Additional Paid-in Capital - Convertible Preferred Stock	Additional Paid-in Capital - Common Stock	Accumulated Deficit
Redeemable noncontrolling interest, beginning balance at Dec. 31, 2018	$ 85,680
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Net income (loss)	3,018
Contributions from redeemable noncontrolling interests	18,030
Distributions to redeemable noncontrolling interests	(3,652)
Costs related to redeemable noncontrolling interests	(1,562)
Equity in subsidiaries attributable to parent	(10,125)
Other, net	2,627
Redeemable noncontrolling interest, ending balance at Mar. 31, 2019	94,016
Stockholders' equity, beginning balance (in shares) at Dec. 31, 2018		44,942,594	13,006,780		8,612,728	21,727
Stockholders' equity, beginning balance at Dec. 31, 2018	501,118	$ 449	$ 130		$ 86	$ 0	$ 701,326	$ 85,439	$ (286,312)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(38,514)								(38,514)
Issuance of stock, net (in shares)						2,143
Issuance of stock, net	4							4
Repurchase of convertible preferred stock (in shares)		(13,484)
Repurchase of convertible preferred stock	(191)						(183)		(8)
Equity in subsidiaries attributable to parent	10,125								10,125
Equity-based compensation expense	281							281
Other, net	491						493		(2)
Stockholders' equity, ending balance (in shares) at Mar. 31, 2019		44,929,110	13,006,780		8,612,728	23,870
Stockholders' equity, ending balance at Mar. 31, 2019	473,314	$ 449	$ 130		$ 86	$ 0	701,636	85,724	(314,711)
Redeemable noncontrolling interest, beginning balance at Dec. 31, 2019	172,305
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Net income (loss)	(5,929)
Contributions from redeemable noncontrolling interests	102,342
Distributions to redeemable noncontrolling interests	(1,373)
Costs related to redeemable noncontrolling interests	(707)
Equity in subsidiaries attributable to parent	(24,164)
Other, net	(47)
Redeemable noncontrolling interest, ending balance at Mar. 31, 2020	242,427
Stockholders' equity, beginning balance (in shares) at Dec. 31, 2019				83,980,885
Stockholders' equity, beginning balance at Dec. 31, 2019	645,935			$ 8				1,007,751	(361,824)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(71,075)								(71,075)
Issuance of stock, net (in shares)				45,405
Issuance of stock, net	214							214
Equity in subsidiaries attributable to parent	24,164								24,164
Equity-based compensation expense	2,690							$ 2,690
Stockholders' equity, ending balance (in shares) at Mar. 31, 2020				84,026,290
Stockholders' equity, ending balance at Mar. 31, 2020	$ 592,020			$ 8			$ 1,010,655		$ (418,643)