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Quarterly financial data (unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2011
Quarterly financial data (unaudited) |
Schedule of quarterly financial data |
|  | 1 st Quarter |  | 2 nd Quarter |  | 3 rd Quarter |  | 4 th Quarter |  | Year |
2011 |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 139,165 |  | $ | 143,551 |  | $ | 144,747 |  | $ | 151,525 |  | $ | 578,988 |
Gross profit |  | $ | 105,804 |  | $ | 108,858 |  | $ | 108,718 |  | $ | 116,422 |  | $ | 439,802 |
Net income (loss) |  | $ | (35,801 | )(2) | $ | 9,958 |  | $ | 12,378 |  | $ | 12,392 |  | $ | (1,073 | )
Net income (loss) per common share: |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | (2.00 | ) | $ | 0.55 |  | $ | 0.67 |  | $ | 0.67 |  | $ | (0.06 | )
Diluted |  | $ | (2.00 | ) | $ | 0.54 |  | $ | 0.66 |  | $ | 0.65 |  | $ | (0.06 | )
2010 |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 138,823 |  | $ | 142,845 |  | $ | 138,906 |  | $ | 143,796 |  | $ | 564,370 |
Gross profit |  | $ | 106,129 |  | $ | 108,758 |  | $ | 106,640 |  | $ | 111,127 |  | $ | 432,654 |
Net income |  | $ | 17,492 | (1) | $ | 10,232 |  | $ | 8,520 |  | $ | 7,964 |  | $ | 44,208 |
Net income per common share: |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 1.00 | (3) | $ | 0.58 |  | $ | 0.48 |  | $ | 0.45 |  | $ | 2.51 |
Diluted |  | $ | 0.99 | (3) | $ | 0.57 |  | $ | 0.48 |  | $ | 0.44 |  | $ | 2.47 |
(1) Includes the $12.0 million gain on sale of the divested vascular business (see Note 20). (2) Includes $46 million of charges related to U.S. Government resolutions (3) The sum of per share earnings by quarter may not equal earnings per share for the year due to the change in average share calculations. This is in accordance with prescribed reporting requirements.

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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 -Topic 270 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (a)-(j) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6952194&loc=d3e1280-108306 + Details
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