Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income
Rental income	$ 188,235	$ 181,481	$ 192,138
Tenant recovery income	57,192	53,218	57,390
Other property income	2,160	3,646	4,280
Other fee income	4,222	4,348	3,820
Total income	251,809	242,693	257,628
Expenses
General and administrative expenses	46,367	53,984	69,678
Property operating expenses	31,950	30,487	34,534
Real estate taxes	35,566	35,703	36,142
Depreciation and amortization	95,345	83,685	85,195
Provision for asset impairment	27,754	11,208	108,154
Total expenses	236,982	215,067	333,703
Operating income (loss)	14,827	27,626	(76,075)
Interest and dividend income	4,249	11,849	11,767
Gain on sale of investment properties, net	24,066	117,848	40,682
Gain (loss) on extinguishment of debt	840	(10,498)	(4,568)
Other (expense) income	(308)	2,330	15,481
Interest expense	(30,155)	(44,135)	(53,686)
Loss on contribution to joint venture	0	0	(12,919)
Equity in (losses) earnings of unconsolidated entities	(804)	9,299	35,078
Gain on sale of investment in unconsolidated entities	0	0	326
Marketable securities realized gain and (impairment), net	46,563	5,081	20,459
Income (loss) from continuing operations before income taxes	59,278	119,400	(23,455)
Income tax expense	(1,324)	(201)	(1,845)
Net income (loss) from continuing operations	57,954	119,199	(25,300)
Net income from discontinued operations	3,839	133,523	28,764
Net income	$ 61,793	$ 252,722	$ 3,464
Weighted average number of common shares outstanding, basic and diluted (in shares)	773,445,341	854,638,497	861,830,627
Net loss, per common share, from continuing operations (in dollars per share)	$ 0.07	$ 0.14	$ (0.03)
Net income, per common share, from discontinued operations (in dollars per share)	0.00	0.15	0.04
Net income per common share, basic and diluted (in dollars per share)	$ 0.07	$ 0.29	$ 0.01
Comprehensive income (loss)
Unrealized (loss) gain on investment securities	$ (11,734)	$ 24,540	$ 299
Unrealized gain (loss) on derivatives	1,183	623	(1,276)
Reclassification for amounts recognized in net income	(46,563)	(3,394)	(19,332)
Comprehensive income (loss)	$ 4,679	$ 274,491	$ (16,845)

Gain and loss s the difference between the book value and the sale price of investments in joint ventures and entities in which the reporting entity has an equity ownership interest and exercises significant influence. Impairment represents other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of which the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is the new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method.

No definition available.