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Quarterly Financial Data (Tables) | 12 Months Ended
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Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract] |
Schedule of supplemental quarterly financial data | The supplemental quarterly financial data are as follows:
| Quarters Ended
| March 30, 2019 |  | June 29, 2019 |  | September 28, 2019 |  | December 31, 2019
Net sales | $ | 2,442,490 |  |  | 2,584,485 |  |  | 2,519,185 |  |  | 2,424,512 |
Gross profit | 624,927 |  |  | 736,618 |  |  | 691,691 |  |  | 622,807 |
Net earnings | 121,585 |  |  | 202,441 |  |  | 155,518 |  |  | 264,667 |
Basic earnings per share | 1.68 |  |  | 2.80 |  |  | 2.16 |  |  | 3.69 |
Diluted earnings per share | 1.67 |  |  | 2.79 |  |  | 2.15 |  |  | 3.68 |
| Quarters Ended
| March 31, 2018 |  | June 30, 2018 |  | September 29, 2018 |  | December 31, 2018
Net sales | $ | 2,412,202 |  |  | 2,577,014 |  |  | 2,545,800 |  |  | 2,448,618 |
Gross profit | 704,692 |  |  | 766,555 |  |  | 720,433 |  |  | 646,390 |
Net earnings | 208,766 |  |  | 196,586 |  |  | 227,013 |  |  | 229,339 |
Basic earnings per share | 2.80 |  |  | 2.64 |  |  | 3.03 |  |  | 3.07 |
Diluted earnings per share | 2.78 |  |  | 2.62 |  |  | 3.02 |  |  | 3.05 |

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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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118952077&loc=d3e1280-108306 + Details
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