Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues:
Property rental	$ 864,742	$ 676,138	$ 559,868
Tenant reinsurance	87,291	71,971	59,072
Management fees and other income	39,842	34,161	28,215
Total revenues	991,875	782,270	647,155
Expenses:
Property operations	250,005	203,965	172,416
Tenant reinsurance	15,555	13,033	10,427
Acquisition related costs and other	12,111	69,401	9,826
General and administrative	81,806	67,758	60,942
Depreciation and amortization	182,560	133,457	115,076
Total expenses	542,037	487,614	368,687
Income from operations	449,838	294,656	278,468
Gain (loss) on real estate transactions, earnout from prior acquisition and sale of other assets	8,465	1,501	(10,285)
Property casualty loss, net	0	0	(1,724)
Interest expense	(133,479)	(95,682)	(81,330)
Non-cash interest expense related to amortization of discount on equity component of exchangeable senior notes	(4,980)	(3,310)	(2,683)
Interest income	6,148	3,461	1,607
Interest income on note receivable from Preferred Operating Partnership unit holder	4,850	4,850	4,850
Income before equity in earnings of unconsolidated real estate ventures and income tax expense	330,842	205,476	188,903
Equity in earnings of unconsolidated real estate ventures	12,895	12,351	10,541
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners' interests	69,199	2,857	4,022
Income tax expense	(15,847)	(11,148)	(7,570)
Net income	397,089	209,536	195,896
Net income allocated to Preferred Operating Partnership noncontrolling interests	(14,700)	(11,718)	(10,991)
Net income allocated to Operating Partnership and other noncontrolling interests	(16,262)	(8,344)	(6,550)
Net income attributable to common stockholders	$ 366,127	$ 189,474	$ 178,355
Earnings per common share
Basic (in dollars per share)	$ 2.92	$ 1.58	$ 1.54
Diluted (in dollars per share)	$ 2.91	$ 1.56	$ 1.53
Weighted average number of shares
Basic (in shares)	125,087,554	119,816,743	115,713,807
Diluted (in shares)	125,948,076	126,918,869	121,435,267