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Quarterly Financial Information (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Quarterly Financial Information | The following table sets forth selected financial information for all of the quarters during the years ended December 31, 2013 and 2012 (in thousands, except per share data):
| First |  | Second |  | Third |  | Fourth
| 2013 |  | 2012 |  | 2013 |  | 2012 |  | 2013 |  | 2012 |  | 2013 |  | 2012
Net Sales | $ | 269,499 |  |  | $ | 290,707 |  |  | $ | 286,974 |  |  | $ | 280,256 |  |  | $ | 288,622 |  |  | $ | 268,248 |  |  | $ | 326,770 |  |  | $ | 260,349 |
Gross Profit | 93,464 |  |  | 100,826 |  |  | 102,613 |  |  | 92,757 |  |  | 105,962 |  |  | 90,116 |  |  | 128,694 |  |  | 89,119 |
Operating Income | 63,854 |  |  | 65,501 |  |  | 71,596 |  |  | 57,512 |  |  | 73,656 |  |  | 57,623 |  |  | 95,636 |  |  | 53,819 |
Net Income | 45,431 |  |  | 46,345 |  |  | 52,097 |  |  | 40,767 |  |  | 55,521 |  |  | 41,877 |  |  | 69,881 |  |  | 39,599 |
Earnings Per Share (Diluted) | $ | 0.32 |  |  | $ | 0.32 |  |  | $ | 0.36 |  |  | $ | 0.28 |  |  | $ | 0.38 |  |  | $ | 0.29 |  |  | $ | 0.48 |  |  | $ | 0.28 |
Earnings Per Share (Basic) | $ | 0.32 |  |  | $ | 0.32 |  |  | $ | 0.36 |  |  | $ | 0.28 |  |  | $ | 0.39 |  |  | $ | 0.29 |  |  | $ | 0.48 |  |  | $ | 0.28 |

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and 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=25249566&loc=d3e1280-108306 + Details
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