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CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Revenues: |  |  |  |
Total revenues | $ 71,924 | $ 64,870 | $ 210,981 | $ 192,693
Expenses (income): |  |  |  |
Property operating | 5,301 | 7,202 | 20,982 | 22,008
Fire loss | 31 |  |  | 195
Fire recovery |  | (305) | (49) |
Operating fees to related parties | 6,956 | 6,390 | 20,925 | 17,833
Acquisition and transaction related | 2,804 | 1,141 | 5,243 | 2,280
General and administrative | 3,215 | 2,468 | 7,822 | 6,291
Equity-based compensation | 2,053 | (391) | 1,198 | (2,610)
Depreciation and amortization | 30,195 | 29,879 | 89,504 | 84,490
Total expenses | 50,555 | 46,384 | 145,625 | 130,487
Operating income | 21,369 | 18,486 | 65,356 | 62,206
Other income (expense): |  |  |  |
Interest expense | (15,104) | (12,479) | (42,494) | (35,644)
Loss on extinguishment of debt | (2,612) | 0 | (3,897) | 0
(Loss) gain on dispositions of real estate investments | (1,933) | 275 | (5,751) | 1,089
Gain (loss) on derivative instruments | 1,290 | (3,125) | 4,688 | (6,585)
Unrealized gain (loss) on undesignated foreign currency advances and other hedge ineffectiveness | 108 | 88 | 18 | (3,765)
Other income | 44 | 2 | 67 | 12
Total other expense, net | (18,207) | (15,239) | (47,369) | (44,893)
Net income before income tax | 3,162 | 3,247 | 17,987 | 17,313
Income tax expense | (530) | (760) | (2,800) | (2,176)
Net income | 2,632 | 2,487 | 15,187 | 15,137
Net income attributable to non-controlling interest | 0 | 0 | 0 | (21)
Preferred Stock dividends | (2,455) | (383) | (7,361) | (383)
Net income attributable to common stockholders | $ 177 | $ 2,104 | $ 7,826 | $ 14,733
Basic and Diluted Earnings Per Share: |  |  |  |
Basic and diluted net income per share attributable to common stockholders (usd per share) | $ 0.00 | $ 0.03 | $ 0.11 | $ 0.21
Weighted average shares outstanding: |  |  |  |
Basic (shares) | 69,441,639 | 67,286,615 | 68,014,855 | 66,739,723
Diluted (shares) | 69,441,639 | 67,286,615 | 68,417,253 | 66,739,723
Rental income |  |  |  |
Revenues: |  |  |  |
Total revenues | $ 68,661 | $ 61,270 | $ 198,015 | $ 179,976
Operating expense reimbursements |  |  |  |
Revenues: |  |  |  |
Total revenues | $ 3,263 | $ 3,600 | $ 12,966 | $ 12,717

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