CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
REVENUES
Rental income	$ 116,416	$ 102,385	$ 332,951	$ 290,744
Other property related income	13,007	11,827	37,413	33,755
Property management fee income	2,673	1,758	7,129	5,030
Total revenues	132,096	115,970	377,493	329,529
OPERATING EXPENSES
Property operating expenses	41,805	39,297	123,631	114,938
Depreciation and amortization	41,827	38,744	122,631	114,725
General and administrative	8,065	7,002	24,184	21,289
Acquisition related costs	888	1,222	5,793	2,485
Total operating expenses	92,585	86,265	276,239	253,437
OPERATING INCOME	39,511	29,705	101,254	76,092
Interest:
Interest expense on loans	(12,787)	(10,399)	(37,071)	(32,324)
Loan procurement amortization expense	(655)	(537)	(1,871)	(1,742)
Equity in (losses) earnings of real estate ventures	(581)	139	(1,817)	(199)
Other	(397)	(288)	834	(812)
Total other expense	(14,420)	(11,085)	(39,925)	(35,077)
NET INCOME	25,091	18,620	61,329	41,015
NET (INCOME) LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS
Noncontrolling interests in the Operating Partnership	(283)	(223)	(682)	(475)
Noncontrolling interest in subsidiaries	76	41	411	56
NET INCOME ATTRIBUTABLE TO THE COMPANY	24,884	18,438	61,058	40,596
Distribution to preferred shareholders	(1,502)	(1,502)	(4,506)	(4,506)
NET INCOME ATTRIBUTABLE TO THE COMPANY'S COMMON SHAREHOLDERS	$ 23,382	$ 16,936	$ 56,552	$ 36,090
Basic earnings per share attributable to common shareholders (in dollars per share)	$ 0.13	$ 0.10	$ 0.32	$ 0.22
Diluted earnings per share attributable to common shareholders (in dollars per share)	$ 0.13	$ 0.10	$ 0.32	$ 0.21
Weighted-average basic shares outstanding (in shares)	179,223	169,304	177,639	167,177
Weighted-average diluted shares outstanding (in shares)	180,478	170,901	178,937	168,705