CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
REVENUES
Rental income	$ 111,538	$ 96,803	$ 216,535	$ 188,359
Other property related income	12,643	11,385	24,406	21,928
Property management fee income	2,345	1,683	4,456	3,272
Total revenues	126,526	109,871	245,397	213,559
OPERATING EXPENSES
Property operating expenses	41,607	38,210	81,826	75,641
Depreciation and amortization	41,448	38,086	80,804	75,981
General and administrative	7,891	7,114	16,119	14,287
Acquisition related costs	2,563	753	4,905	1,263
Total operating expenses	93,509	84,163	183,654	167,172
OPERATING INCOME	33,017	25,708	61,743	46,387
Interest:
Interest expense on loans	(12,200)	(10,868)	(24,284)	(21,925)
Loan procurement amortization expense	(611)	(659)	(1,216)	(1,205)
Equity in losses of real estate ventures	(724)	(100)	(1,236)	(338)
Other	901	(208)	1,231	(524)
Total other expense	(12,634)	(11,835)	(25,505)	(23,992)
NET INCOME	20,383	13,873	36,238	22,395
NET (INCOME) LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS
Noncontrolling interests in the Operating Partnership	(227)	(161)	(399)	(252)
Noncontrolling interest in subsidiaries	268	12	335	15
NET INCOME ATTRIBUTABLE TO THE COMPANY	20,424	13,724	36,174	22,158
Distribution to preferred shareholders	(1,502)	(1,502)	(3,004)	(3,004)
NET INCOME ATTRIBUTABLE TO THE COMPANY'S COMMON SHAREHOLDERS	$ 18,922	$ 12,222	$ 33,170	$ 19,154
Basic earnings per share attributable to common shareholders (in dollars per share)	$ 0.11	$ 0.07	$ 0.19	$ 0.12
Diluted earnings per share attributable to common shareholders (in dollars per share)	$ 0.11	$ 0.07	$ 0.19	$ 0.11
Weighted-average basic shares outstanding (in shares)	177,880	166,683	176,838	166,096
Weighted-average diluted shares outstanding (in shares)	179,221	168,224	178,172	167,655