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Selected Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Selected Quarterly Financial Data | Selected quarterly financial data for 2020 and 2019 are as follows:
| Three Months Ended
| March(1) |  | June(2) |  | September(3) |  | December(4)
2020 |  |  |  |  |  |  |
Net sales | $ | 214,010 |  |  | $ | 157,785 |  |  | $ | 237,835 |  |  | $ | 252,828 |
Gross profit | 119,159 |  |  | 71,929 |  |  | 133,698 |  |  | 135,514 |
Net income (loss) | 5,927 |  |  | (27,400) |  |  | 6,850 |  |  | 24,140 |
EPS: |  |  |  |  |  |  |
Basic | $ | 0.21 |  |  | $ | (0.96) |  |  | $ | 0.24 |  |  | $ | 0.84 |
Diluted | 0.20 |  |  | $ | (0.96) |  |  | $ | 0.23 |  |  | $ | 0.81 |
| Three Months Ended
| March(5) |  | June(6) |  | September(7) |  | December(8)
2019 |  |  |  |  |  |  |
Net sales | $ | 218,378 |  |  | $ | 238,263 |  |  | $ | 233,590 |  |  | $ | 264,865 |
Gross profit | 121,438 |  |  | 131,190 |  |  | 130,111 |  |  | 141,975 |
Net income | 1,021 |  |  | 5,695 |  |  | 6,970 |  |  | 14,933 |
EPS: |  |  |  |  |  |  |
Basic | $ | 0.04 |  |  | $ | 0.20 |  |  | $ | 0.25 |  |  | $ | 0.53 |
Diluted | $ | 0.04 |  |  | $ | 0.19 |  |  | $ | 0.23 |  |  | $ | 0.49 |

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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=121640914&loc=d3e1280-108306 + Details
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