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QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables) | 12 Months Ended
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Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract] |
Schedule of quarterly financial data |
|  | First |  | Second |  | Third |  | Fourth
2012 |  |  |  |  |  |  |  |
Net sales |  | $ | 727,122 |  |  | $ | 744,045 |  |  | $ | 697,552 |  |  | $ | 684,648 |
Gross profit |  | 215,265 |  |  | 224,997 |  |  | 213,362 |  |  | 213,032 |
Income before income taxes |  | 92,919 |  |  | 98,157 |  |  | 90,889 |  |  | 87,605 |
Net income |  | 64,243 |  |  | 66,319 |  |  | 64,765 |  |  | 62,084 |
Basic earnings per share |  | $ | 0.77 |  |  | $ | 0.80 |  |  | $ | 0.78 |  |  | $ | 0.75 |
Diluted earnings per share |  | $ | 0.76 |  |  | $ | 0.79 |  |  | $ | 0.77 |  |  | $ | 0.74 |
2011 |  |  |  |  |  |  |  |
Net sales |  | $ | 599,179 |  |  | $ | 699,293 |  |  | $ | 701,624 |  |  | $ | 694,513 |
Gross profit |  | 161,438 |  |  | 195,504 |  |  | 185,452 |  |  | 194,343 |
Income before income taxes |  | 60,537 |  |  | 81,494 |  |  | 75,873 |  |  | 83,427 |
Net income |  | 46,910 |  |  | 57,013 |  |  | 55,530 |  |  | 57,733 |
Basic earnings per share |  | $ | 0.56 |  |  | $ | 0.69 |  |  | $ | 0.66 |  |  | $ | 0.69 |
Diluted earnings per share |  | $ | 0.55 |  |  | $ | 0.68 |  |  | $ | 0.66 |  |  | $ | 0.68 |

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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=20225539&loc=d3e1280-108306 + Details
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