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Unaudited Quarterly Data | 12 Months Ended
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Dec. 31, 2016
Quarterly Financial Data [Abstract] |
Unaudited Quarterly Data | Note U — Unaudited Quarterly Data Summarized quarterly financial data for the years ended December 31, 2016, and 2015 is as follows:
(In thousands, except per share data) | 1st Quarter |  | 2nd Quarter |  | 3rd Quarter |  | 4th Quarter
Year Ended December 31, 2016 |  |  |  |  |  |  |
Revenues | $ | 835,652 |  |  | $ | 749,619 |  |  | $ | 693,877 |  |  | $ | 684,104 |
Gross profit | 534,944 |  |  | 500,158 |  |  | 457,226 |  |  | 442,721 |
Operating profit (loss) | 48,430 |  |  | 27,550 |  |  | 16,700 |  |  | (159,276 | )
Net earnings (loss) | 25,061 |  |  | 9,946 |  |  | 6,181 |  |  | (146,383 | )
Basic earnings (loss) per common share | $ | 0.47 |  |  | $ | 0.19 |  |  | $ | 0.12 |  |  | $ | (2.76 | )
Diluted earnings (loss) per common share | $ | 0.47 |  |  | $ | 0.19 |  |  | $ | 0.12 |  |  | $ | (2.76 | )
Cash dividends declared per common share | $ | 0.08 |  |  | $ | 0.08 |  |  | $ | 0.08 |  |  | $ | 0.08 |
(In thousands, except per share data) | 1st Quarter |  | 2nd Quarter |  | 3rd Quarter |  | 4th Quarter(1)
Year Ended December 31, 2015 |  |  |  |  |  |  |
Revenues | $ | 877,639 |  |  | $ | 815,343 |  |  | $ | 791,605 |  |  | $ | 793,833 |
Gross profit | 564,593 |  |  | 538,529 |  |  | 488,612 |  |  | 526,375 |
Operating profit (loss) | 56,598 |  |  | 49,701 |  |  | 6,565 |  |  | (1,120,752 | )
Net earnings (loss) | 27,298 |  |  | 23,147 |  |  | (4,092 | ) |  | (999,873 | )
Basic earnings (loss) per common share | $ | 0.51 |  |  | $ | 0.44 |  |  | $ | (0.08 | ) |  | $ | (18.84 | )
Diluted earnings (loss) per common share | $ | 0.51 |  |  | $ | 0.43 |  |  | $ | (0.08 | ) |  | $ | (18.84 | )
Cash dividends declared per common share | $ | 0.24 |  |  | $ | 0.24 |  |  | $ | 0.24 |  |  | $ | 0.24 |
(1) Fourth quarter net loss and loss per share revised for correction of deferred tax error associated with our goodwill impairment reported in the fourth quarter of 2015 as discussed in Note B.

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- Definition The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=51655806&loc=d3e765-108305 Reference 2: 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=51825399&loc=d3e1280-108306 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=51655806&loc=d3e725-108305 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section G -Subsection 1 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 302 -Paragraph a + Details
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