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Quarterly Information (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Information |
|  |  |  | Earnings from Continuing Operations Before Income Taxes |  | Earnings from Continuing Operations |  |  |  | Earnings from Continuing Operations per Common Share |  | Net Earnings per Common Share
|  | Revenue |  |  |  | Net Earnings |  | Basic |  | Diluted |  | Basic |  | Diluted
|  | (In thousands, except per share amounts)
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
First quarter |  | $ | 1,748,163 |  |  | 59,956 |  |  | 38,279 |  |  | 38,149 |  |  | 0.72 |  |  | 0.71 |  |  | 0.72 |  |  | 0.71 |
Second quarter |  | 1,793,214 |  |  | 80,692 |  |  | 51,343 |  |  | 50,816 |  |  | 0.97 |  |  | 0.97 |  |  | 0.96 |  |  | 0.96 |
Third quarter |  | 1,848,529 |  |  | 94,343 |  |  | 58,913 |  |  | 58,623 |  |  | 1.12 |  |  | 1.11 |  |  | 1.11 |  |  | 1.11 |
Fourth quarter |  | 1,939,693 |  |  | 78,795 |  |  | 642,480 |  |  | 642,970 |  |  | 12.21 |  |  | 12.10 |  |  | 12.22 |  |  | 12.11 |
Full year |  | $ | 7,329,599 |  |  | 313,786 |  |  | 791,015 |  |  | 790,558 |  |  | 14.98 |  |  | 14.87 |  |  | 14.97 |  |  | 14.87 |
2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
First quarter |  | $ | 1,629,672 |  |  | 88,708 |  |  | 56,185 |  |  | 55,794 |  |  | 1.06 |  |  | 1.05 |  |  | 1.05 |  |  | 1.04 |
Second quarter |  | 1,703,744 |  |  | 116,779 |  |  | 74,042 |  |  | 73,750 |  |  | 1.39 |  |  | 1.38 |  |  | 1.39 |  |  | 1.38 |
Third quarter |  | 1,724,418 |  |  | 131,698 |  |  | 85,138 |  |  | 84,752 |  |  | 1.60 |  |  | 1.59 |  |  | 1.60 |  |  | 1.59 |
Fourth quarter |  | 1,729,150 |  |  | 69,196 |  |  | 49,275 |  |  | 48,181 |  |  | 0.93 |  |  | 0.92 |  |  | 0.91 |  |  | 0.91 |
Full year |  | $ | 6,786,984 |  |  | 406,381 |  |  | 264,640 |  |  | 262,477 |  |  | 4.98 |  |  | 4.94 |  |  | 4.94 |  |  | $ | 4.90 |
Note: EPS amounts may not be additive due to rounding.

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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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