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Quarterly Financial Data (Unaudited) | 12 Months Ended
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Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Data (Unaudited) | Quarterly Financial Data (Unaudited) The supplemental quarterly financial data are as follows:
| Quarters Ended
| April 2, 2016 |  | July 2, 2016 |  | October 1, 2016 |  | December 31, 2016
Net sales | $ | 2,172,046 |  |  | 2,310,336 |  |  | 2,294,139 |  |  | 2,182,566 |
Gross profit | 639,679 |  |  | 755,588 |  |  | 726,559 |  |  | 690,999 |
Net earnings | 171,548 |  |  | 255,188 |  |  | 269,878 |  |  | 233,748 |
Basic earnings per share | 2.32 |  |  | 3.44 |  |  | 3.64 |  |  | 3.15 |
Diluted earnings per share | 2.30 |  |  | 3.42 |  |  | 3.62 |  |  | 3.13 |
| Quarters Ended
| April 4, 2015 |  | July 4, 2015 |  | October 3, 2015 |  | December 31, 2015
Net sales | $ | 1,881,177 |  |  | 2,041,733 |  |  | 2,150,656 |  |  | 1,997,997 |
Gross profit | 511,943 |  |  | 615,129 |  |  | 661,404 |  |  | 622,210 |
Net earnings | 22,346 |  |  | 186,492 |  |  | 214,905 |  |  | 191,559 |
Basic earnings per share | 0.31 |  |  | 2.54 |  |  | 2.91 |  |  | 2.59 |
Diluted earnings per share | 0.30 |  |  | 2.53 |  |  | 2.89 |  |  | 2.57 |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 Reference 2: 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=68064558&loc=d3e765-108305 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=68064558&loc=d3e725-108305 + Details
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