Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues:
Property rental	$ 247,886	$ 231,493
Tenant reinsurance	27,034	22,855
Management fees and other income	10,565	8,660
Total revenues	285,485	263,008
Expenses:
Property operations	72,753	66,645
Tenant reinsurance	5,607	3,920
General and administrative	21,464	18,808
Depreciation and amortization	51,749	49,432
Total expenses	151,573	138,805
Income from operations	133,912	124,203
Interest expense	(40,966)	(35,970)
Non-cash interest expense related to amortization of discount on equity component of exchangeable senior notes	(1,209)	(1,269)
Interest income	1,438	2,315
Income before equity in earnings of unconsolidated real estate ventures and income tax expense	93,175	89,279
Equity in earnings of unconsolidated real estate ventures	3,597	3,579
Income tax expense	(1,342)	(3,124)
Net income	95,430	89,734
Net income allocated to Preferred Operating Partnership noncontrolling interests	(3,390)	(3,951)
Net income allocated to Operating Partnership and other noncontrolling interests	(3,784)	(3,501)
Net income attributable to common stockholders	$ 88,256	$ 82,282
Earnings per common share
Basic (in dollars per share)	$ 0.70	$ 0.65
Diluted (in dollars per share)	$ 0.70	$ 0.64
Weighted average number of shares
Basic (in shares)	125,772,439	125,605,403
Diluted (in shares)	132,682,560	132,618,644
Cash dividends paid per common share (in dollars per share)	$ 0.78	$ 0.78