Consolidated Statement of Changes in Stockholders' Equity and Noncontrolling Interests (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests	Redeemable Noncontrolling Interests	Series D Convertible Preferred Stock	Series D Convertible Preferred Stock Preferred Stock	Series D Convertible Preferred Stock Additional Paid-In Capital	Series D Convertible Preferred Stock Retained Earnings
Common stock dividends declared (per share)	$ 4.00	$ 4.00							$ 1.3125
Preferred stock dividends declared (per share)								$ 1.3125
Beginning balance (shares) at Dec. 31, 2018		111,011,816
Beginning balance at Dec. 31, 2018	$ 7,883,928	$ 1,110	$ 7,286,954	$ 0	$ (10,435)	$ 541,963			$ 64,336
Increase (Decrease) in Stockholders' Equity
Net income	403,172			363,165		40,007
Total other comprehensive income (loss)	686				686
Contributions from and sales of noncontrolling interests	1,134,939		381,162			753,777
Distributions to noncontrolling interests	(47,395)					(47,395)
Issuance of common stock (in shares)		8,723,076
Issuance of common stock	1,216,445	$ 87	1,216,358
Issuances pursuant to stock plan (in shares)		666,836
Issuance pursuant to stock plan	67,913	$ 7	67,906
Taxes paid related to net settlement of equity awards (in shares)		(179,008)
Taxes related to net settlement of equity awards	(25,477)	$ (2)	(25,475)
Repurchases of 7.00% Series D preferred stock								$ (9,240)	(6,875)	$ 215	$ (2,580)
Dividends declared on common stock	(463,964)			(463,964)
Dividends declared on preferred stock	(3,204)			(3,204)
Reclassification of earnings in excess of distributions			(110,108)	110,108
Ending balance (shares) at Dec. 31, 2019		120,800,315
Ending balance at Dec. 31, 2019	$ 10,154,178	$ 1,208	8,874,367	0	(9,749)	1,288,352			0
Beginning balance at Dec. 31, 2018							$ 10,786
Increase (Decrease) in Temporary Equity [Roll Forward]
Net Income							875
Contributions from and sales of noncontrolling interests							1,469
Distributions to noncontrolling interests							(830)
Ending balance at Dec. 31, 2019							12,300
Common stock dividends declared (per share)	$ 4.24	$ 4.24
Increase (Decrease) in Stockholders' Equity
Net income	$ 826,268			770,959		55,309
Total other comprehensive income (loss)	3,124				3,124
Contributions from and sales of noncontrolling interests	717,158		267,432			449,726
Distributions to noncontrolling interests	(86,663)					(86,663)
Issuance of common stock (in shares)		15,337,916
Issuance of common stock	2,315,862	$ 153	2,315,709
Issuances pursuant to stock plan (in shares)		688,599
Issuance pursuant to stock plan	83,999	$ 7	83,992
Taxes paid related to net settlement of equity awards (in shares)		(136,501)
Taxes related to net settlement of equity awards	(21,322)	$ (1)	(21,321)
Dividends declared on common stock	$ (557,684)			(557,684)
Reclassification of earnings in excess of distributions			210,791	(210,791)
Ending balance (shares) at Dec. 31, 2020	136,690,329	136,690,329
Ending balance at Dec. 31, 2020	$ 13,432,436	$ 1,367	11,730,970	0	(6,625)	1,706,724			$ 0
Increase (Decrease) in Temporary Equity [Roll Forward]
Net Income							903
Contributions from and sales of noncontrolling interests							281
Distributions to noncontrolling interests							(2,142)
Ending balance at Dec. 31, 2020	11,342						11,342
Common stock dividends declared (per share)		$ 4.48
Increase (Decrease) in Stockholders' Equity
Net income	653,416			571,247		82,169
Total other comprehensive income (loss)	(669)				(669)
Contributions from and sales of noncontrolling interests	2,147,061		989,393			1,157,668
Distributions to noncontrolling interests	$ (112,465)					(112,465)
Issuance of common stock (in shares)	20,800,000	20,827,052
Issuance of common stock	$ 3,529,097	$ 208	3,528,889
Issuances pursuant to stock plan (in shares)		709,737
Issuance pursuant to stock plan	97,933	$ 7	97,926
Taxes paid related to net settlement of equity awards (in shares)		(183,238)
Taxes related to net settlement of equity awards	(34,338)	$ (2)	(34,336)
Dividends declared on common stock	$ (688,833)			(688,833)
Reclassification of earnings in excess of distributions			(117,586)	117,586
Ending balance (shares) at Dec. 31, 2021	158,043,880	158,043,880
Ending balance at Dec. 31, 2021	$ 19,023,638	$ 1,580	$ 16,195,256	$ 0	$ (7,294)	$ 2,834,096
Increase (Decrease) in Temporary Equity [Roll Forward]
Net Income							866
Contributions from and sales of noncontrolling interests							282
Distributions to noncontrolling interests							(2,878)
Ending balance at Dec. 31, 2021	$ 9,612						$ 9,612