Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Document Fiscal Year Focus	2015	2014	2013
REVENUES:
Rental property revenues	$ 373,068	$ 343,910	$ 194,420
Fee income	7,297	12,519	10,891
Other Revenue from Continuing Operations	1,278	4,954	5,430
Total consolidated revenues	381,643	361,383	210,741
COSTS AND EXPENSES:
Rental property operating expenses	156,157	155,934	90,498
Reimbursed expenses	3,430	3,652	5,215
General and administrative expenses	17,099	19,969	22,460
Interest expense	30,723	29,110	21,709
Depreciation and amortization	135,416	140,018	76,277
Acquisition and related costs	299	1,130	7,484
Other	1,000	3,544	3,693
Total costs and expenses	344,124	353,357	227,336
Income (loss) from continuing operations before taxes, unconsolidated joint ventures, and sale of investment properties	37,519	8,026	(16,595)
Benefit for income taxes from operations	0	20	23
INCOME (LOSS) FROM UNCONSOLIDATED JOINT VENTURES	8,302	11,268	67,325
Income (Loss) from Continuing Operations Before Gain on Sale of Investment Properties	45,821	19,314	50,753
GAIN ON SALE OF INVESTMENT PROPERTIES	80,394	12,536	61,288
INCOME (LOSS) FROM CONTINUING OPERATIONS	126,215	31,850	112,041
Income (loss) from discontinued operations:
Income (loss) from discontinued operations	(35)	1,800	3,299
Gain (loss) on sale from discontinued operations	(551)	19,358	11,489
Total income from discontinued operations	(586)	21,158	14,788
Net income	125,629	53,008	126,829
Net income attributable to noncontrolling interests	(111)	(1,004)	(5,068)
Net Income (Loss) in Statement on Equity			126,761
Net income attributable to controlling interests	125,518	52,004	121,761
Preferred Share Original Issuance Costs	0	(3,530)	(2,656)
Dividends to preferred stockholders	0	(2,955)	(10,008)
Net income available to common stockholders	$ 125,518	$ 45,519	$ 109,097
PER COMMON SHARE INFORMATION - BASIC AND DILUTED:
Income (loss) from continuing operations attributable to controlling interest (dollars per share)	$ 0.58	$ 0.12	$ 0.66
Income from discontinued operations (dollars per share)	0.00	0.10	0.10
Net income (loss) available to common stockholders (dollars per share)	$ 0.58	$ 0.22	$ 0.76
WEIGHTED AVERAGE SHARES—BASIC (shares)	215,827	204,216	144,255
WEIGHTED AVERAGE SHARES—DILUTED (shares)	215,979	204,460	144,420