Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Property rental	$ 1,340,990	$ 1,157,522	$ 1,130,177
Tenant reinsurance	170,108	146,561	128,387
Management fees and other income	66,264	52,129	49,890
Total revenues	1,577,362	1,356,212	1,308,454
Expenses:
Property operations	368,608	360,615	336,050
Tenant reinsurance	29,488	26,494	29,376
General and administrative	102,194	96,594	89,418
Depreciation and amortization	241,879	224,444	219,857
Total expenses	742,169	708,147	674,701
Gain on real estate transactions	140,760	18,075	1,205
Income from operations	975,953	666,140	634,958
Interest expense	(166,183)	(168,626)	(186,526)
Non-cash interest expense related to amortization of discount on equity component of exchangeable senior notes	0	(3,675)	(4,742)
Interest income	49,703	15,192	7,467
Income before equity in earnings and dividend income from unconsolidated real estate ventures and income tax expense	859,473	509,031	451,157
Equity in earnings and dividend income from unconsolidated real estate entities	32,358	22,361	11,274
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partner's interest	6,251	0	0
Income tax expense	(20,324)	(13,810)	(11,308)
Net income	877,758	517,582	451,123
Net income allocated to Preferred Operating Partnership noncontrolling interests	(14,697)	(12,882)	(12,492)
Net income allocated to Operating Partnership and other noncontrolling interests	(35,412)	(22,921)	(18,664)
Net income attributable to common stockholders	$ 827,649	$ 481,779	$ 419,967
Earnings per common share
Basic (in dollars per share)	$ 6.20	$ 3.71	$ 3.27
Diluted (in dollars per share)	$ 6.19	$ 3.71	$ 3.24
Weighted average number of shares
Basic (in shares)	133,374,938	129,541,531	128,203,568
Diluted (in shares)	140,016,028	129,584,829	136,433,769