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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Revenue: |  |  |  |
Total revenue |  | $ 1,371,695 | $ 1,296,184 | $ 1,306,965
Costs and expenses: |  |  |  |
Business interruption gain |  | (141) | (602) | (2,692)
Corporate activities |  | 10,865 | 10,993 | 12,396
Interest income |  | (369) | (354) | (319)
Interest expense |  | 14,199 | 9,640 | 8,304
Multi-employer pension plan withdrawal |  | 15,693 |  |
Other expense | [1] | 1,586 | 1,744 | 2,028
Restructuring charges |  | 8,380 | 1,587 | 1,004
Legal settlement |  | 8,500 |  |
Impairment charges (recoveries) |  | 5,346 | (35) | (29,098)
Total costs and expenses |  | 1,345,585 | 1,231,175 | 1,202,615
Income from continuing operations before income taxes |  | 26,110 | 65,009 | 104,350
Income tax expense |  | 2,506 | 17,095 | 45,898
Income from continuing operations |  | 23,604 | 47,914 | 58,452
Income (loss) from discontinued operations |  | (81) | 1,481 | (268)
Net income |  | 23,523 | 49,395 | 58,184
Net income attributable to non-redeemable noncontrolling interest |  | (2,309) | (542) | (523)
Net loss attributable to redeemable noncontrolling interest |  | 821 | 317 | 46
Net income attributable to Viad |  | $ 22,035 | $ 49,170 | $ 57,707
Diluted income (loss) per common share: |  |  |  |
Continuing operations attributable to Viad common stockholders |  | $ 1.02 | $ 2.33 | $ 2.84
Discontinued operations attributable to Viad common stockholders |  |  | 0.07 | (0.01)
Net income attributable to Viad common stockholders |  | $ 1.02 | $ 2.40 | $ 2.83
Weighted-average outstanding and potentially dilutive common shares |  | 20,284 | 20,404 | 20,405
Basic income (loss) per common share: |  |  |  |
Continuing operations attributable to Viad common stockholders |  | $ 1.02 | $ 2.33 | $ 2.84
Discontinued operations attributable to Viad common stockholders |  |  | 0.07 | (0.01)
Net income attributable to Viad common stockholders |  | $ 1.02 | $ 2.40 | $ 2.83
Weighted-average outstanding common shares |  | 20,146 | 20,168 | 20,146
Dividends declared per common share |  | $ 0.40 | $ 0.40 | $ 0.40
Amounts attributable to Viad common stockholders |  |  |  |
Income from continuing operations |  | $ 22,116 | $ 47,689 | $ 57,975
Income (loss) from discontinued operations |  | (81) | 1,481 | (268)
Net income attributable to Viad |  | 22,035 | 49,170 | 57,707
Services |  |  |  |
Revenue: |  |  |  |
Total revenue |  | 1,170,493 | 1,110,249 | 1,132,424
Costs and expenses: |  |  |  |
Costs and expenses |  | 1,100,146 | 1,039,403 | 1,052,911
Products |  |  |  |
Revenue: |  |  |  |
Total revenue |  | 201,202 | 185,935 | 174,541
Costs and expenses: |  |  |  |
Costs and expenses |  | $ 181,380 | $ 168,799 | $ 158,081
[1] | We adopted ASU 2017-07 on January 1, 2018, which requires retrospective adoption. As a result, we recorded the nonservice cost component of net periodic benefit cost within other expense for the years ended December 31, 2019 and 2018, and we reclassified $2.0 million from operating expenses to other expense for 2017 to conform with current period presentation.

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