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Quarterly Data | 12 Months Ended
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Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract] |
Supplementary financial Information-quarterly data (Unaudited) | Supplementary Financial Information Quarterly Data (Unaudited) The following unaudited information shows selected items by quarter for the years 2020 and 2019:
| First Quarter | Second Quarter | Third Quarter | Fourth Quarter
| (In thousands, except per share amounts)
2020 |  |  |  |
Operating revenues | $ | 1,197,373 |  | $ | 1,362,928 |  | $ | 1,587,289 |  | $ | 1,385,160 |
Operating expenses | 1,140,303 |  | 1,224,674 |  | 1,383,578 |  | 1,239,270 |
Operating income | 57,070 |  | 138,254 |  | 203,711 |  | 145,890 |
Income from continuing operations | 25,539 |  | 99,842 |  | 153,015 |  | 112,131 |
Income (loss) from discontinued operations, net of tax | (409) |  | (139) |  | 63 |  | 163 |
Net income | 25,130 |  | 99,703 |  | 153,078 |  | 112,294 |
Earnings per share - basic: |  |  |  |
Income from continuing operations | .13 |  | .50 |  | .76 |  | .56 |
Discontinued operations, net of tax | — |  | — |  | — |  | — |
Earnings per share - basic | .13 |  | .50 |  | .76 |  | .56 |
Earnings per share - diluted: |  |  |  |
Income from continuing operations | .13 |  | .50 |  | .76 |  | .56 |
Discontinued operations, net of tax | — |  | — |  | — |  | — |
Earnings per share - diluted | .13 |  | .50 |  | .76 |  | .56 |
Weighted average common shares outstanding: |  |  |  |
Basic | 200,440 |  | 200,522 |  | 200,522 |  | 200,522 |
Diluted | 200,456 |  | 200,539 |  | 200,619 |  | 200,923 |
2019 |  |  |  |
Operating revenues | $ | 1,091,191 |  | $ | 1,303,573 |  | $ | 1,563,799 |  | $ | 1,378,213 |
Operating expenses | 1,026,973 |  | 1,206,262 |  | 1,374,329 |  | 1,247,992 |
Operating income | 64,218 |  | 97,311 |  | 189,470 |  | 130,221 |
Income from continuing operations | 41,089 |  | 63,145 |  | 136,128 |  | 94,804 |
Income (loss) from discontinued operations, net of tax | (163) |  | (1,320) |  | 1,509 |  | 261 |
Net income | 40,926 |  | 61,825 |  | 137,637 |  | 95,065 |
Earnings per share - basic: |  |  |  |
Income from continuing operations | .21 |  | .32 |  | .68 |  | .47 |
Discontinued operations, net of tax | — |  | (.01) |  | .01 |  | — |
Earnings per share - basic | .21 |  | .31 |  | .69 |  | .47 |
Earnings per share - diluted: |  |  |  |
Income from continuing operations | .21 |  | .32 |  | .68 |  | .47 |
Discontinued operations, net of tax | — |  | (.01) |  | .01 |  | — |
Earnings per share - diluted | .21 |  | .31 |  | .69 |  | .47 |
Weighted average common shares outstanding: |  |  |  |
Basic | 196,401 |  | 198,270 |  | 199,343 |  | 200,383 |
Diluted | 196,414 |  | 198,287 |  | 199,383 |  | 200,478 |
Certain operations of the Company are highly seasonal and revenues from and certain expenses for such operations may fluctuate significantly among quarterly periods. Accordingly, quarterly financial information may not be indicative of results for a full year.

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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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