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Quarterly Results (Unaudited) | 12 Months Ended
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Dec. 31, 2018
Quarterly Results (Unaudited) [Abstract] |
Quarterly Results (Unaudited) |
(14) | Quarterly Results (Unaudited)
The unaudited quarterly results for the year ended December 31, 2018 were as follows (in thousands, except per share amounts):
|  | Three Months Ended |
|  | March 31, 2018 |  |  | June 30, 2018 |  |  | September 30, 2018 |  |  | December 31, 2018 |
Revenues |  | $ | 741,688 |  |  | $ | 802,671 |  |  | $ | 704,845 |  |  | $ | 721,493 |
Costs and expenses |  |  | 692,866 |  |  |  | 747,260 |  |  |  | 636,906 |  |  |  | 740,344 |
Gain (loss) on disposition of assets |  |  | 1,898 |  |  |  | 442 |  |  |  | 18 |  |  |  | (390 | )
Operating income (loss) |  |  | 50,720 |  |  |  | 55,853 |  |  |  | 67,957 |  |  |  | (19,241 | )
Other income |  |  | 1,591 |  |  |  | 1,541 |  |  |  | 1,454 |  |  |  | 1,140 |
Interest expense |  |  | (9,780 | ) |  |  | (12,540 | ) |  |  | (12,345 | ) |  |  | (12,191 | )
Earnings (loss) before taxes on income |  |  | 42,531 |  |  |  | 44,854 |  |  |  | 57,066 |  |  |  | (30,292 | )
Benefit (provision) for taxes on income |  |  | (9,865 | ) |  |  | (16,061 | ) |  |  | (15,116 | ) |  |  | 5,961 |
Net earnings (loss) |  |  | 32,666 |  |  |  | 28,793 |  |  |  | 41,950 |  |  |  | (24,331 | )
Less: Net earnings attributable to noncontrolling interests |  |  | (195 | ) |  |  | (191 | ) |  |  | (134 | ) |  |  | (106 | )
Net earnings (loss) attributable to Kirby |  | $ | 32,471 |  |  | $ | 28,602 |  |  | $ | 41,816 |  |  | $ | (24,437 | )
Net earnings (loss) per share attributable to Kirby common stockholders: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.54 |  |  | $ | 0.48 |  |  | $ | 0.70 |  |  | $ | (0.41 | )
Diluted |  | $ | 0.54 |  |  | $ | 0.48 |  |  | $ | 0.70 |  |  | $ | (0.41 | )
The unaudited quarterly results for the year ended December 31, 2017 were as follows (in thousands, except per share amounts):
|  | Three Months Ended |
|  | March 31, 2017 |  |  | June 30, 2017 |  |  | September 30, 2017 |  |  | December 31, 2017 |
Revenues |  | $ | 491,705 |  |  | $ | 473,328 |  |  | $ | 541,274 |  |  | $ | 708,111 |
Costs and expenses |  |  | 445,760 |  |  |  | 425,937 |  |  |  | 488,186 |  |  |  | 756,423 |
Gain (loss) on disposition of assets |  |  | 99 |  |  |  | (139 | ) |  |  | (159 | ) |  |  | (4,288 | )
Operating income (loss) |  |  | 46,044 |  |  |  | 47,252 |  |  |  | 52,929 |  |  |  | (52,600 | )
Other income (expense) |  |  | (589 | ) |  |  | 228 |  |  |  | 320 |  |  |  | 902 |
Interest expense |  |  | (4,457 | ) |  |  | (4,465 | ) |  |  | (5,388 | ) |  |  | (7,162 | )
Earnings (loss) before taxes on income |  |  | 40,998 |  |  |  | 43,015 |  |  |  | 47,861 |  |  |  | (58,860 | )
Benefit (provision) for taxes on income |  |  | (13,353 | ) |  |  | (17,043 | ) |  |  | (19,072 | ) |  |  | 290,357 |
Net earnings |  |  | 27,645 |  |  |  | 25,972 |  |  |  | 28,789 |  |  |  | 231,497 |
Less: Net earnings attributable to noncontrolling interests |  |  | (162 | ) |  |  | (194 | ) |  |  | (182 | ) |  |  | (178 | )
Net earnings attributable to Kirby |  | $ | 27,483 |  |  | $ | 25,778 |  |  | $ | 28,607 |  |  | $ | 231,319 |
Net earnings per share attributable to Kirby common stockholders: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.51 |  |  | $ | 0.48 |  |  | $ | 0.52 |  |  | $ | 3.88 |
Diluted |  | $ | 0.51 |  |  | $ | 0.48 |  |  | $ | 0.52 |  |  | $ | 3.87 |
Quarterly basic and diluted earnings per share may not total to the full year per share amounts, as the weighted average number of shares outstanding for each quarter fluctuates as a result of the assumed exercise of stock options.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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