Consolidated Statements of Operations - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
REVENUES:
Rental and other property income	$ 45,048,000	$ 57,414,000	$ 161,813,000	$ 181,886,000
Expense reimbursements	4,717,000	3,884,000	10,273,000	10,128,000
Interest and other income	5,619,000	3,034,000	11,546,000	9,295,000
REVENUES	55,384,000	64,332,000	183,632,000	201,309,000
EXPENSES:
Rental and other property operating	26,058,000	31,723,000	76,267,000	95,300,000
Asset management and other fees to related parties	6,896,000	8,496,000	23,459,000	25,503,000
Interest	9,359,000	10,276,000	28,645,000	24,386,000
General and administrative	1,342,000	2,226,000	4,668,000	6,299,000
Transaction costs (Note 16)	242,000	53,000	11,870,000	320,000
Depreciation and amortization	13,472,000	17,724,000	45,464,000	54,262,000
Impairment of real estate	0	0	13,100,000	0
EXPENSES	57,369,000	70,498,000	203,473,000	206,070,000
Gain on sale of real estate (Note 3)	74,715,000	14,927,000	378,732,000	39,666,000
INCOME FROM CONTINUING OPERATIONS BEFORE PROVISION FOR INCOME TAXES	72,730,000	8,761,000	358,891,000	34,905,000
Provision for income taxes	339,000	379,000	1,193,000	1,040,000
NET INCOME FROM CONTINUING OPERATIONS	72,391,000	8,382,000	357,698,000	33,865,000
DISCONTINUED OPERATIONS:
Income from operations of assets held for sale (Note 7)	0	703,000	0	3,061,000
NET INCOME FROM DISCONTINUED OPERATIONS	0	703,000	0	3,061,000
NET INCOME	72,391,000	9,085,000	357,698,000	36,926,000
Net loss (income) attributable to noncontrolling interests	4,000	3,000	(10,000)	(9,000)
NET INCOME ATTRIBUTABLE TO THE COMPANY	72,395,000	9,088,000	357,688,000	36,917,000
Redeemable preferred stock dividends	(138,000)	0	(241,000)	0
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 72,257,000	$ 9,088,000	$ 357,447,000	$ 36,917,000
BASIC AND DILUTED NET INCOME AVAILABLE TO COMMON STOCKHOLDERS PER SHARE:
Continuing operations (in usd per share)	$ 1.25	$ 0.10	$ 4.86	$ 0.36
Discontinued operations (in usd per share)	0.00	0.01	0.00	0.03
Net income (in usd per share)	$ 1.25	$ 0.10	$ 4.86	$ 0.39
WEIGHTED AVERAGE SHARES OF COMMON STOCK OUTSTANDING:
Basic (in shares)	57,876	87,045	73,503	93,772
Diluted (in shares)	57,876	87,045	73,503	93,772