Consolidated Statements of Changes in Shareholders' Equity - USD ($)	Total	Common stock	Additional paid-in capital	Accumulated deficit	Treasury stock	Parent	Noncontrolling Interest	San Mateo I	San Mateo I Additional paid-in capital	San Mateo I Parent	San Mateo II	San Mateo II Additional paid-in capital	San Mateo II Parent	San Mateo II Noncontrolling Interest
Beginning Balance at Dec. 31, 2017	$ 1,257,546,000	$ 1,085,000	$ 1,666,024,000	$ (510,484,000)	$ (69,000)	$ 1,156,556,000	$ 100,990,000
Beginning Balance, shares (in shares) at Dec. 31, 2017		108,514,000			3,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of Class A common stock, shares		7,000,000
Issuance of Class A common stock	226,612,000	$ 70,000	226,542,000			226,612,000
Issuance of common stock pursuant to employee stock compensation plan, shares		759,000
Issuance of common stock pursuant to employee stock compensation plan	0	$ 8,000	(8,000)			0
Issuance of Class A common stock to Board member and advisors, shares		81,000
Issuance of Class A common stock to Board member and advisors	0	$ 1,000	(1,000)			0
Stock options expense related to equity based awards	22,660,000		22,660,000			22,660,000
Stock options exercised, shares		179,000
Stock options exercised, net of options forfeited in net share settlements	(1,267,000)	$ 2,000	(1,269,000)			(1,267,000)
Cost to issue equity	(204,000)		(204,000)			(204,000)
Restricted stock forfeited, shares					176,000
Restricted stock forfeited	(4,384,000)				$ (4,384,000)	(4,384,000)
Contributions related to formation of San Mateo I (see Note 6)	14,700,000		14,700,000			14,700,000
Contributions from non-controlling interest owners of less-than-wholly-owned subsidiaries	85,750,000						85,750,000
Distributions to non-controlling interest owners of less-than wholly-owned subsidiaries	(121,520,000)						(121,520,000)
Cancellation of treasury stock, shares		(158,000)			(158,000)
Cancellation of treasury stock	0	$ (2,000)	(4,036,000)		$ 4,038,000	0
Net (loss) income	299,764,000			274,207,000		274,207,000	25,557,000
Ending Balance, shares (in shares) at Dec. 31, 2018		116,375,000			21,000
Ending Balance at Dec. 31, 2018	1,779,657,000	$ 1,164,000	1,924,408,000	(236,277,000)	$ (415,000)	1,688,880,000	90,777,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to employee stock compensation plan, shares		240,000
Issuance of common stock pursuant to employee stock compensation plan	0	$ 2,000	(2,000)				0
Stock Issued During Period, Shares, Issued for Services		50,000
Stock options expense related to equity based awards	23,396,000		23,396,000			23,396,000
Stock options exercised, shares		220,000
APIC, Share-based Payment Arrangement, Recognition and Exercise	3,300,000	$ 2,000	3,298,000			3,300,000
Liability-Based Stock Option Awards Settled, Shares		1,000
Liability-Based Stock Option Awards Settled	11,000
Restricted stock forfeited, shares					222,000
Restricted stock forfeited	(3,691,000)				$ (3,691,000)	(3,691,000)
Contributions related to formation of San Mateo I (see Note 6)								$ 11,613,000	$ 11,613,000	$ 11,613,000	$ 0	$ (506,000)	$ (506,000)	$ 506,000
Contributions from non-controlling interest owners of less-than-wholly-owned subsidiaries	71,384,000		22,874,000			22,874,000	48,510,000
Distributions to non-controlling interest owners of less-than wholly-owned subsidiaries	(39,200,000)						(39,200,000)
Cancellation of treasury stock, shares		(242,000)			(242,000)
Cancellation of treasury stock		$ (2,000)	(4,078,000)		$ 4,080,000
Net (loss) income	$ 122,982,000			87,777,000		87,777,000	35,205,000
Ending Balance, shares (in shares) at Dec. 31, 2019	116,642,899	116,644,000			1,000
Ending Balance at Dec. 31, 2019	$ 1,969,452,000	$ 1,166,000	1,981,014,000	(148,500,000)	$ (26,000)	1,833,654,000	135,798,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to employee stock compensation plan, shares		244,000
Issuance of common stock pursuant to employee stock compensation plan	0	$ 2,000	(2,000)
Issuance of Class A common stock to Board member and advisors, shares		85,000
Issuance of Class A common stock to Board member and advisors	0	$ 1,000	(1,000)
Stock options expense related to equity based awards	$ 17,452,000		17,452,000			17,452,000
Stock options exercised, shares	65,000
APIC, Share-based Payment Arrangement, Recognition and Exercise	$ (24,000)		(24,000)			(24,000)
Liability-Based Stock Option Awards Settled, Shares		22,000
Liability-Based Stock Option Awards Settled	297,000
Restricted stock forfeited, shares					149,000
Restricted stock forfeited	(1,489,000)				$ (1,489,000)	(1,489,000)
Contributions related to formation of San Mateo I (see Note 6)								$ 11,613,000	$ 11,613,000	$ 11,613,000	$ 114,854,000	$ 18,232,000	$ 18,232,000	$ 96,622,000
Distributions to non-controlling interest owners of less-than wholly-owned subsidiaries	(45,570,000)						(45,570,000)
Cancellation of treasury stock, shares		(148,000)			(148,000)
Cancellation of treasury stock	0		(1,512,000)		$ 1,512,000
Net (loss) income	$ (553,560,000)			(593,205,000)		(593,205,000)	39,645,000
Ending Balance, shares (in shares) at Dec. 31, 2020	116,844,768	116,847,000			2,000
Ending Balance at Dec. 31, 2020	$ 1,513,025,000	$ 1,169,000	$ 2,027,069,000	$ (741,705,000)	$ (3,000)	$ 1,286,530,000	$ 226,495,000