Consolidated Statements of Operations - USD ($) shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
REVENUES:
Rental and other property income	$ 55,956,000	$ 61,624,000	$ 116,765,000	$ 124,472,000
Expense reimbursements	2,526,000	3,316,000	5,556,000	6,244,000
Interest and other income	2,817,000	3,420,000	5,927,000	6,261,000
REVENUES	61,299,000	68,360,000	128,248,000	136,977,000
EXPENSES:
Rental and other property operating	27,249,000	32,299,000	50,209,000	63,577,000
Asset management and other fees to related parties	7,863,000	8,376,000	16,563,000	17,007,000
Interest	9,513,000	7,295,000	19,286,000	14,110,000
General and administrative	1,647,000	2,131,000	3,326,000	4,073,000
Transaction costs	11,615,000	118,000	11,628,000	267,000
Depreciation and amortization	14,761,000	18,480,000	31,992,000	36,538,000
Impairment of real estate	13,100,000	0	13,100,000	0
EXPENSES	85,748,000	68,699,000	146,104,000	135,572,000
Gain on sale of real estate	116,283,000	0	304,017,000	24,739,000
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE PROVISION FOR INCOME TAXES	91,834,000	(339,000)	286,161,000	26,144,000
Provision for income taxes	462,000	471,000	854,000	661,000
NET INCOME (LOSS) FROM CONTINUING OPERATIONS	91,372,000	(810,000)	285,307,000	25,483,000
DISCONTINUED OPERATIONS:
Income from operations of assets held for sale	0	1,668,000	0	2,358,000
NET INCOME FROM DISCONTINUED OPERATIONS	0	1,668,000	0	2,358,000
NET INCOME	91,372,000	858,000	285,307,000	27,841,000
Net income attributable to noncontrolling interests	(9,000)	(9,000)	(14,000)	(12,000)
NET INCOME ATTRIBUTABLE TO THE COMPANY	91,363,000	849,000	285,293,000	27,829,000
Redeemable preferred stock dividends	(72,000)	0	(103,000)	0
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 91,291,000	$ 849,000	$ 285,190,000	$ 27,829,000
BASIC AND DILUTED NET INCOME (LOSS) AVAILABLE TO COMMON STOCKHOLDERS PER SHARE:
Continuing operations (in usd per share)	$ 1.16	$ (0.01)	$ 3.50	$ 0.26
Discontinued operations (in usd per share)	0.00	0.02	0.00	0.02
Net income (in usd per share)	$ 1.16	$ 0.01	$ 3.50	$ 0.29
WEIGHTED AVERAGE SHARES OF COMMON STOCK OUTSTANDING:
Basic (in shares)	78,871	96,683	81,445	97,173
Diluted (in shares)	78,871	96,683	81,445	97,173