Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
REVENUES:
Rental and other property income	$ 202,163	$ 241,413	$ 252,994
Expense reimbursements	16,646	12,502	13,394
Interest and other income	17,567	12,016	10,560
REVENUES	236,376	265,931	276,948
EXPENSES:
Rental and other property operating	101,585	124,703	133,178
Asset management and other fees to related parties	30,251	33,882	33,169
Interest	36,338	34,385	23,630
General and administrative	5,479	7,961	9,402
Transaction costs (Note 16)	11,862	340	1,382
Depreciation and amortization	58,364	71,968	72,361
Impairment of real estate (Note 2)	13,100	0	0
EXPENSES	256,979	273,239	273,122
Gain on sale of real estate (Note 3)	401,737	39,666	3,092
INCOME FROM CONTINUING OPERATIONS BEFORE PROVISION FOR INCOME TAXES	381,134	32,358	6,918
Provision for income taxes	1,376	1,646	806
NET INCOME FROM CONTINUING OPERATIONS	379,758	30,712	6,112
DISCONTINUED OPERATIONS:
Income from operations of assets held for sale (Note 7)	0	3,853	13,140
Gain on disposition of assets held for sale (Note 7)	0	0	5,151
NET INCOME FROM DISCONTINUED OPERATIONS	0	3,853	18,291
NET INCOME	379,758	34,565	24,403
Net income attributable to noncontrolling interests	(21)	(18)	(11)
NET INCOME ATTRIBUTABLE TO THE COMPANY	379,737	34,547	24,392
Redeemable preferred stock dividends (Note 11)	(490)	(9)	0
Redeemable preferred stock redemptions (Note 11)	2	0	0
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 379,249	$ 34,538	$ 24,392
BASIC AND DILUTED NET INCOME AVAILABLE TO COMMON STOCKHOLDERS PER SHARE:
Continuing operations (in usd per share)	$ 5.47	$ 0.34	$ 0.06
Discontinued operations (in usd per share)	0.00	0.04	0.19
Net income (in usd per share)	$ 5.47	$ 0.38	$ 0.25
WEIGHTED AVERAGE SHARES OF COMMON STOCK OUTSTANDING:
Basic (in shares)	69,062	91,328	97,588
Diluted (in shares)	69,070	91,328	97,588