Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues:
Rental	$ 267,265	$ 244,349	$ 237,856
Related party revenue:
Management fees and interest income from loans	5,285	5,465	5,930
Other	38	74	81
Total revenues	272,588	249,888	243,867
Expenses:
Real estate operating expenses	71,212	65,335	61,890
Real estate taxes and insurance	45,841	40,140	38,660
Depreciation and amortization	101,258	93,052	91,359
General and administrative	13,471	14,126	13,291
Interest	32,387	26,548	25,432
Total expenses	264,169	239,201	230,632
Income before equity in losses of non-consolidated REITs, other and gain (loss) on sale of properties and properties held for sale, less applicable income tax and taxes	8,419	10,687	13,235
Interest income			1
Equity in losses of non-consolidated REITs	(3,604)	(831)	(1,451)
Other	(1,878)	1,878
Gain (loss) on sale of properties and properties held for sale, less applicable income tax	(18,481)	(2,938)	23,662
Income (loss) before taxes on income	(15,544)	8,796	35,447
Taxes on income	400	418	433
Net income (loss)	$ (15,944)	$ 8,378	$ 35,014
Weighted average number of shares outstanding, basic and diluted (in shares)	107,231,000	102,843,000	100,187,000
Net income (loss) per share, basic and diluted (in dollars per share)	$ (0.15)	$ 0.08	$ 0.35