Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2020	$ (162,812)	$ 0	$ 20	$ 4,325	$ 5,766,511	$ 5,608,044	$ 62,210	$ 5,670,254
Balance (in shares) at Dec. 31, 2020			20	432,519
Net income	137,942	0	$ 0	$ 0	0	137,942	3,483	141,425
Redeemable noncontrolling interests income	0	0	0	0	0	0	(169)	(169)
Dividends declared to common and preferred shares	(80,039)	0	0	0	0	(80,039)	0	(80,039)
Distributions to noncontrolling interests	0	0	0	0	0	0	(370)	(370)
Issuance of common stock	0	0	$ 0	$ 14	(14)	0	0	0
Issuance of common stock (in shares)			0	1,442
Surrender of common stock	0	0	$ 0	$ (5)	(9,087)	(9,092)	0	(9,092)
Surrender of common stock (in shares)			0	(521)
Exercise of common stock options	0	0	$ 0	$ 0	160	160	0	160
Exercise of common stock options (in shares)			0	8
Amortization of equity awards	0	0	$ 0	$ 0	6,298	6,298	0	6,298
Balance at Mar. 31, 2021	(104,909)	0	$ 20	$ 4,334	5,763,868	5,663,313	65,154	5,728,467
Balance (in shares) at Mar. 31, 2021			20	433,448
Balance at Dec. 31, 2021	299,115	2,216	$ 20	$ 6,167	9,591,871	9,899,389	210,793	10,110,182
Balance (in shares) at Dec. 31, 2021			20	616,659
Net income	237,302	0	$ 0	$ 0	0	237,302	(1,343)	235,959
Redeemable noncontrolling interests income	0	0	0	0	0	0	(333)	(333)
Dividends declared to common and preferred shares	(123,758)	0	0	0	0	(123,758)	0	(123,758)
Distributions to noncontrolling interests	0	0	0	0	0	0	(4,340)	(4,340)
Issuance of common stock	0	0	$ 0	$ 17	(17)	0	0	0
Issuance of common stock (in shares)			0	1,712
Surrender of common stock	0	0	$ 0	$ (6)	(13,438)	(13,444)	0	(13,444)
Surrender of common stock (in shares)			0	(570)
Exercise of common stock options	0	0	$ 0	$ 1	2,567	2,568	0	2,568
Exercise of common stock options (in shares)			0	128
Amortization of equity awards	0	0	$ 0	$ 0	7,437	7,437	0	7,437
Contributions from noncontrolling interests	0	0	0	0	0	0	891	891
Redemption/conversion of noncontrolling interests	0	0	$ 0	$ 1	1,535	1,536	(1,536)	0
Redemption/conversion of noncontrolling interests (in shares)			0	73
Balance at Mar. 31, 2022	$ 412,659	$ 2,216	$ 20	$ 6,180	$ 9,589,955	$ 10,011,030	$ 204,132	$ 10,215,162
Balance (in shares) at Mar. 31, 2022			20	618,002