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CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Revenues: |  |  |
Total revenues | $ 2,970,697 | $ 2,214,418 | $ 1,770,673
Costs and expenses: |  |  |
Costs of sales and operating expenses | 2,160,946 | 1,558,098 | 1,124,666
Selling, general and administrative | 304,397 | 220,452 | 174,863
Taxes, other than on income | 39,251 | 29,163 | 22,730
Depreciation and amortization | 224,972 | 202,881 | 200,917
Impairment of long-lived assets | 82,705 | 105,712 | 0
Impairment of goodwill | 2,702 | 0 | 0
Lease cancellation costs | 2,403 | 0 | 0
Loss (gain) on disposition of assets | (1,968) | 4,487 | 127
Total costs and expenses | 2,815,408 | 2,120,793 | 1,523,303
Operating income | 155,289 | 93,625 | 247,370
Equity in earnings of affiliates | 355 | 291 | 532
Other income (expense) | 5,371 | 570 | (2,466)
Interest expense | (46,856) | (21,472) | (17,690)
Earnings before taxes on income | 114,159 | 73,014 | 227,746
Benefit (provision) for taxes on income | (35,081) | 240,889 | (84,942)
Net earnings | 79,078 | 313,903 | 142,804
Less: Net earnings attributable to noncontrolling interests | (626) | (716) | (1,398)
Net earnings attributable to Kirby | $ 78,452 | $ 313,187 | $ 141,406
Net earnings per share attributable to Kirby common stockholders: |  |  |
Basic (in dollars per share) | $ 1.31 | $ 5.62 | $ 2.63
Diluted (in dollars per share) | $ 1.31 | $ 5.62 | $ 2.62
Marine Transportation [Member] |  |  |
Revenues: |  |  |
Total revenues | $ 1,483,143 | $ 1,324,106 | $ 1,471,893
Distribution and Services [Member] |  |  |
Revenues: |  |  |
Total revenues | $ 1,487,554 | $ 890,312 | $ 298,780

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