CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
REVENUES
Rental income	$ 104,997	$ 91,556
Other property related income	11,763	10,543
Property management fee income	2,111	1,589
Total revenues	118,871	103,688
OPERATING EXPENSES
Property operating expenses	40,219	37,431
Depreciation and amortization	39,356	37,895
General and administrative	8,228	7,173
Acquisition related costs	2,342	510
Total operating expenses	90,145	83,009
OPERATING INCOME	28,726	20,679
Interest:
Interest expense on loans	(12,084)	(11,057)
Loan procurement amortization expense	(605)	(546)
Equity in losses of real estate ventures	(512)	(238)
Other	330	(316)
Total other expense	(12,871)	(12,157)
NET INCOME	15,855	8,522
NET (INCOME) LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS
Noncontrolling interests in the Operating Partnership	(172)	(91)
Noncontrolling interest in subsidiaries	67	3
NET INCOME ATTRIBUTABLE TO THE COMPANY	15,750	8,434
Distribution to preferred shareholders	(1,502)	(1,502)
NET INCOME ATTRIBUTABLE TO THE COMPANY'S COMMON SHAREHOLDERS	$ 14,248	$ 6,932
Basic earnings per share attributable to common shareholders (in dollars per share)	$ 0.08	$ 0.04
Diluted earnings per share attributable to common shareholders (in dollars per share)	$ 0.08	$ 0.04
Weighted-average basic shares outstanding (in shares)	175,798	165,502
Weighted-average diluted shares outstanding (in shares)	177,261	167,165