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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Revenues: |  |  |
Total revenues | $ 1,632,026 | $ 1,040,155 | $ 1,117,164
Expenses: |  |  |
Property operating expenses | 1,236,357 | 489,070 | 451,581
Depreciation and amortization | 270,147 | 289,025 | 286,235
General and administrative | 30,593 | 37,028 | 85,885
Acquisition and certain other transaction related costs | 814 | 13,102 | 194
Impairment of assets | 106,972 | 115,201 | 66,346
Costs and Expenses, Total | 1,644,883 | 943,426 | 890,241
Gain on sale of properties | 6,487 | 39,696 | 261,916
Dividend income | 0 | 1,846 | 2,901
Gains and losses on equity securities, net | 34,106 | (41,898) | (20,724)
Interest and other income | 18,221 | 941 | 667
Interest expense (including net amortization of debt premiums, discounts and issuance costs of $8,022, $6,032 and $6,221, respectively) | (201,483) | (180,112) | (179,287)
Gain on lease termination | 22,896 | 0 | 0
Loss on early extinguishment of debt | (427) | (44) | (22)
(Loss) income from continuing operations before income tax expense and equity in earnings of an investee | (133,057) | (82,842) | 292,374
Income tax expense | (1,250) | (436) | (476)
Equity in earnings of an investee | 0 | 400 | 516
Net (loss) income | (134,307) | (82,878) | 292,414
Net income attributable to noncontrolling interest | (5,146) | (5,356) | (5,542)
Net (loss) income attributable to common shareholders | (139,453) | (88,234) | 286,872
Other comprehensive income (loss): |  |  |
Amounts reclassified from cumulative other comprehensive income to net income | 0 | 175 | 0
Equity in unrealized gain (loss) of an investee | 0 | 91 | (68)
Other comprehensive income (loss) | 0 | 266 | (68)
Comprehensive (loss) income | (134,307) | (82,612) | 292,346
Comprehensive income attributable to noncontrolling interest | (5,146) | (5,356) | (5,542)
Comprehensive (loss) income attributable to common shareholders | $ (139,453) | $ (87,968) | $ 286,804
Weighted average shares used in computing earnings per common share: |  |  |
Weighted average common shares outstanding (basic) (in shares) | 237,739 | 237,604 | 237,511
Weighted average common shares outstanding (diluted) (in shares) | 237,739 | 237,604 | 237,546
Per common share amounts (basic and diluted) |  |  |
Net (loss) income attributable to common shareholders (in dollars per share) | $ (0.59) | $ (0.37) | $ 1.21
Rental income |  |  |
Revenues: |  |  |
Total revenues | $ 427,215 | $ 606,558 | $ 700,641
Residents fees and services |  |  |
Revenues: |  |  |
Total revenues | $ 1,204,811 | $ 433,597 | $ 416,523

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460 + Details
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