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Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Data (Unaudited) |
Schedule of Quarterly Financial Data (Unaudited) |
|  | Year ended December 31, 2017 |
|  | First |  | Second |  | Third |  | Fourth |  |  |  |
|  | Quarter |  | Quarter |  | Quarter |  | Quarter |  | Year |
Operating revenues |  | $ | 765,415 |  | $ | 809,759 |  | $ | 831,936 |  | $ | 797,158 |  | $ | 3,204,268 |
Operating income |  |  | 76,295 |  |  | 106,596 |  |  | 112,369 |  |  | 92,939 |  |  | 388,199 |
Net income(1) |  |  | 34,786 |  |  | 50,477 |  |  | 53,716 |  |  | 289,928 |  |  | 428,907 |
Net income per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 0.67 |  |  | 0.98 |  |  | 1.04 |  |  | 5.60 |  |  | 8.28 |
Diluted |  |  | 0.65 |  |  | 0.95 |  |  | 1.01 |  |  | 5.46 |  |  | 8.08 |
Weighted average common shares: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic: |  |  | 51,820 |  |  | 51,751 |  |  | 51,833 |  |  | 51,811 |  |  | 51,804 |
Diluted: |  |  | 53,202 |  |  | 52,977 |  |  | 53,080 |  |  | 53,140 |  |  | 53,100 |
|  | Year ended December 31, 2016 |
|  | First |  | Second |  | Third |  | Fourth |  |  |  |
|  | Quarter |  | Quarter |  | Quarter |  | Quarter |  | Year |
Operating revenues |  | $ | 762,075 |  | $ | 801,338 |  | $ | 799,776 |  | $ | 758,017 |  | $ | 3,121,206 |
Operating income (loss) |  |  | 61,809 |  |  | 84,137 |  |  | 85,834 |  |  | (404,464) |  |  | (172,684) |
Net income (loss)(2) |  |  | 27,092 |  |  | 40,244 |  |  | 41,322 |  |  | (270,244) |  |  | (161,586) |
Net income (loss) per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 0.53 |  |  | 0.78 |  |  | 0.80 |  |  | (5.22) |  |  | (3.14) |
Diluted |  |  | 0.52 |  |  | 0.77 |  |  | 0.79 |  |  | (5.22) |  |  | (3.14) |
Weighted average common shares: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic: |  |  | 51,218 |  |  | 51,418 |  |  | 51,627 |  |  | 51,757 |  |  | 51,505 |
Diluted: |  |  | 52,014 |  |  | 52,194 |  |  | 52,471 |  |  | 51,757 |  |  | 51,505 |
| (1) |  | Net income for 2017 included a $246.8 million benefit related to the revaluation of the Company’s deferred tax liability and other tax liabilities in accordance with the Tax Act.
Operating loss for the fourth quarter of 2016 included a special charge of $465.6 million related to an impairment on the Company’s 50-seat aircraft

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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