Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
REVENUE
Rental income	$ 220,581	$ 204,447
Other property income	4,067	2,190
Mortgage interest income	757	752
Total revenue	225,405	207,389
EXPENSES
Rental expenses	44,773	41,109
Real estate taxes	28,448	25,090
General and administrative	7,929	8,267
Depreciation and amortization	58,110	51,379
Total operating expenses	139,260	125,845
OPERATING INCOME	86,145	81,544
Other interest income	179	106
Interest expense	(26,184)	(23,758)
Loss from real estate partnerships	(525)	0
INCOME FROM CONTINUING OPERATIONS	59,615	57,892
Gain on sale of real estate, net	3,316	178
NET INCOME	62,931	58,070
Net income attributable to noncontrolling interests	(1,684)	(1,880)
NET INCOME ATTRIBUTABLE TO THE TRUST	61,247	56,190
Dividends on preferred shares	(2,010)	(135)
NET INCOME AVAILABLE FOR COMMON SHAREHOLDERS	$ 59,237	$ 56,055
EARNINGS PER COMMON SHARE, BASIC:
Net income available for common shareholders	$ 0.81	$ 0.78
Weighted average number of common shares	72,905	71,862
EARNINGS PER COMMON SHARE, DILUTED:
Net income available for common shareholders	$ 0.81	$ 0.78
Weighted average number of common shares	72,968	72,005
COMPREHENSIVE INCOME	$ 63,398	$ 59,154
COMPREHENSIVE INCOME ATTRIBUTABLE TO THE TRUST	$ 61,714	$ 57,274