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
REVENUE
Rental income	$ 197,469	$ 181,562	$ 585,712	$ 538,612
Other property income	2,759	2,479	8,559	9,364
Mortgage interest income	929	1,211	3,211	3,529
Total revenue	201,157	185,252	597,482	551,505
EXPENSES
Rental expenses	38,588	34,439	118,385	108,501
Real estate taxes	24,973	21,804	71,164	62,865
General and administrative	8,232	9,374	25,278	27,526
Depreciation and amortization	48,903	43,718	145,137	128,373
Total operating expenses	120,696	109,335	359,964	327,265
OPERATING INCOME	80,461	75,917	237,518	224,240
Other interest income	105	6	285	109
Interest expense	(24,313)	(21,733)	(71,143)	(69,346)
Early extinguishment of debt	0	0	0	(19,072)
Income from real estate partnerships	0	360	41	986
INCOME FROM CONTINUING OPERATIONS	56,253	54,550	166,701	136,917
Gain on sale of real estate and change in control of interests	4,945	0	32,458	11,509
NET INCOME	61,198	54,550	199,159	148,426
Net income attributable to noncontrolling interests	(2,221)	(2,103)	(7,286)	(6,161)
NET INCOME ATTRIBUTABLE TO THE TRUST	58,977	52,447	191,873	142,265
Dividends on preferred shares	(136)	(136)	(406)	(406)
NET INCOME AVAILABLE FOR COMMON SHAREHOLDERS	$ 58,841	$ 52,311	$ 191,467	$ 141,859
EARNINGS PER COMMON SHARE, BASIC
Continuing operations	$ 0.75	$ 0.75	$ 2.26	$ 1.89
Gain on sale of real estate and change in control of interests, net	0.07	0.00	0.44	0.17
Earnings per common share, basic	$ 0.82	$ 0.75	$ 2.70	$ 2.06
Weighted average number of common shares, basic	71,319	69,006	70,626	68,637
EARNINGS PER COMMON SHARE, DILUTED
Continuing operations	$ 0.75	$ 0.75	$ 2.26	$ 1.88
Gain on sale of real estate and change in control of interests, net	0.07	0.00	0.44	0.17
Earnings per common share, diluted	$ 0.82	$ 0.75	$ 2.70	$ 2.05
Weighted average number of common shares, diluted	71,489	69,181	70,804	68,821
COMPREHENSIVE INCOME	$ 63,097	$ 52,329	$ 197,875	$ 144,811
COMPREHENSIVE INCOME ATTRIBUTABLE TO THE TRUST	$ 60,876	$ 50,226	$ 190,589	$ 138,650